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Cape Canaveral, Florida — Mar 07, `08 — Preparations are on track for Tuesday’s 25th flight to the International Space Station, said NASA test director Steve Payne during today’s STS-123 Countdown Status Briefing, the first for the mission.

The launch remains on schedule for 2:28 a.m. EDT on March 11.

The orbiter’s aft compartment was closed Wednesday night and the payload bay doors were closed for flight early Thursday morning.

NASA managers decided to fly using the secondary backup system in low-power mode after a problem surfaced with a high-power amplifier on one Ultra High Frequency (UHF) radio. The backup system meets all of the flight safety rules required for flight.

Some pre-launch activities this weekend will include loading supercold propellants after the pad is cleared at about 11 p.m. Saturday night. After the pad opens again on Sunday morning, the shuttle will get an engine check, the external tank will be inspected and the crew’s gear will be stowed inside the orbiter.

The Rotating Service Structure surrounding and protecting the shuttle will be retracted at 6 a.m. EDT Monday for Tuesday’s launch.

“We have no other issues to report,” Payne said. “The systems are clean, it appears it’s going to be a good day for us and Endeavour and her crew are ready to launch.”

The weather outlook, according to Todd McNamara, shuttle weather officer, is looking very good for Tuesday. There will be a high-pressure system over Central Florida and there’s only a 10 percent chance that weather will prohibit launch. More at NASA.

Cape Canaveral, Florida — Feb 01, `08 — Space shuttle Atlantis’ STS-122 mission remains on schedule for launch Feb 07, `08 at 2:45 pm EST from NASA’s Kennedy Space Center in Florida now that a plan to fix a bent cooling system hose has been determined.

During launch preparations at Kennedy, technicians noticed a small section of a braided metal hose that was bent in a shape similar to the Greek letter Omega. The radiator retract hose, part of the shuttle’s cooling system that carries Freon, is designed to flex. However, engineers wanted to make sure they were not overlooking potential problems and designed a tool to guide the hose back into the storage box. Testing in Huntington Beach, Calif., has proven successful and program managers gave the go ahead to close payload bay doors using the tool on Sunday evening.

The NASA teams of controllers at Kennedy, Johnson Space Center in Houston and Marshall Space Flight Center in Huntsville, Ala., will be joined by European teams based in Germany for the mission. The German-based controllers will oversee the operation of the new Columbus laboratory which is tucked inside Atlantis’ payload bay.

The lab, built in Italy and outfitted in Germany, will be the second dedicated research facility taken to the International Space Station. It can hold 10 racks dedicated for experiments covering a wide range of space science.

Atlantis’ seven astronauts will arrive at Kennedy Monday at 10:30 am, and the countdown clock will begin ticking down Monday at 5 pm. More at NASA.

Cape Canaveral, Florida — The Space Shuttle Program met Thursday, Dec 27, to assess the progress made to troubleshoot an issue with the engine cutoff sensor circuit that occurred during the recent launch attempts and tanking test. Instrumentation installed for the tanking test indicate that there are one or more intermittent open circuits in the area of the feed through connector on the external tank’s liquid hydrogen tank.

The external parts of the connector will be removed and replaced with others that have been strategically soldered to ensure pin-to-socket connectivity and allow continuous electrical flow from sensors inside the external tank to the shuttle’s computers.

This work will take some time to properly accomplish and to certify the redesigned configuration before flight. While a launch on Jan 10 is no longer achievable, no launch date has been discussed. The program will take time to assess progress of the work before setting a target launch date. More at NASA.

Stanford Report — Dec 18,`07 — Dan Stober writes an in-depth article on Stanford’s nanowire battery at Stanford news service.

Stanford researchers have found a way to use silicon nanowires to reinvent the rechargeable lithium-ion batteries that power laptops, iPods, video cameras, cell phones, and countless other devices.

The new version, developed through research led by Yi Cui, assistant professor of materials science and engineering, produces 10 times the amount of electricity of existing lithium-ion, known as Li-ion, batteries. A laptop that now runs on battery for two hours could operate for 20 hours, a boon to ocean-hopping business travelers.

“It’s not a small improvement,” Cui said. “It’s a revolutionary development.”

The breakthrough is described in a paper, “High-performance lithium battery anodes using silicon nanowires,” published online Dec. 16 in Nature Nanotechnology, written by Cui, his graduate chemistry student Candace Chan and five others.

The greatly expanded storage capacity could make Li-ion batteries attractive to electric car manufacturers. Cui suggested that they could also be used in homes or offices to store electricity generated by rooftop solar panels.

“Given the mature infrastructure behind silicon, this new technology can be pushed to real life quickly,” Cui said.

The electrical storage capacity of a Li-ion battery is limited by how much lithium can be held in the battery’s anode, which is typically made of carbon. Silicon has a much higher capacity than carbon, but also has a drawback.

Silicon placed in a battery swells as it absorbs positively charged lithium atoms during charging, then shrinks during use (i.e., when playing your iPod) as the lithium is drawn out of the silicon. This expand/shrink cycle typically causes the silicon (often in the form of particles or a thin film) to pulverize, degrading the performance of the battery.

Cui’s battery gets around this problem with nanotechnology. The lithium is stored in a forest of tiny silicon nanowires, each with a diameter one-thousandth the thickness of a sheet of paper. The nanowires inflate four times their normal size as they soak up lithium. But, unlike other silicon shapes, they do not fracture.

Research on silicon in batteries began three decades ago. Chan explained: “The people kind of gave up on it because the capacity wasn’t high enough and the cycle life wasn’t good enough. And it was just because of the shape they were using. It was just too big, and they couldn’t undergo the volume changes.”

Then, along came silicon nanowires. “We just kind of put them together,” Chan said.

For their experiments, Chan grew the nanowires on a stainless steel substrate, providing an excellent electrical connection. “It was a fantastic moment when Candace told me it was working,” Cui said.

Cui said that a patent application has been filed. He is considering formation of a company or an agreement with a battery manufacturer. Manufacturing the nanowire batteries would require “one or two different steps, but the process can certainly be scaled up,” he added. “It’s a well understood process.” More at Stanford.edu

Commission proposal to limit the CO2 emissions from cars to help fight climate change, reduce fuel costs and increase European competitiveness.

Brussels — Dec 19, `07 — The European Commission today proposed legislation to reduce the average CO2 emissions of new passenger cars to 120 grams per kilometre by 2012.

The proposed legislation is the cornerstone of the EU’s strategy to improve the fuel economy of cars, which account for about 12% of the European Union’s carbon emissions. The proposal further underlines the EU’s leadership and determination to deliver on its greenhouse gas commitments under the Kyoto Protocol and beyond.

President of the Commission José Manuel Barroso stated: “This proposal demonstrates that the European Union is committed to being a world leader in cutting CO2 emissions and the development of a low carbon economy. At the same time, we are committed to promote the competitiveness of our industry and its global technological leadership.”

Environment Commissioner Stavros Dimas said: “The aim of the legislation is to reduce CO2 emissions from cars in order to help fight climate change. The legislation will also ensure important fuel savings which will translate into considerable benefits for consumers. Moreover, it will encourage the car industry to invest in new technologies and actively promote eco-innovation, which is a driver for more and high-quality jobs.”

Emissions reductions
The proposal will be a major step in lowering CO2 emissions in the EU. It will reduce the average emissions of CO2 from new passenger cars in the EU from around 160 grams per kilometre to 130 grams per kilometre in 2012 as part of the EU’s integrated approach to achieve overall 120 grams per kilometre. That will translate into a 19% reduction of CO2 emissions and will place the EU among the world leaders of fuel efficient cars.

How the legislation will work
The draft legislation defines a limit value curve of CO2 emissions allowed for new vehicles according to the mass of the vehicle. The curve is set in such a way that a fleet average of 130 grams of CO2 per kilometre is achieved. A manufacturer must ensure that by 2012 measured fleet average emissions are below the limit value curve, when all vehicles manufactured and registered in a given year by the manufacturer in question are taken into account.

This means that the level of emissions by heavier cars will have to be improved proportionately more than lighter cars compared to today. Manufacturers will still be able to make cars with emissions above the limit value curve provided these are balanced by cars which are below the curve as long as the fleet average remains at 130 grams.

The proposal will now be communicated to the Council and to the European Parliament as part of the co-decision legislative procedure. More at European Commission here and here.

WASHINGTON — Dec 17, `07 — A powerful jet from a super massive black hole is blasting a nearby galaxy, according to new findings from NASA observatories. This never-before witnessed galactic violence may have a profound effect on planets in the jet’s path and trigger a burst of star formation in its destructive wake.

Known as 3C321, the system contains two galaxies in orbit around each other. Data from NASA’s Chandra X-ray Observatory show both galaxies contain super massive black holes at their centers, but the larger galaxy has a jet emanating from the vicinity of its black hole. The smaller galaxy apparently has swung into the path of this jet.

This “death star” galaxy was discovered through the combined efforts of both space and ground-based telescopes. NASA’s Chandra X-ray Observatory, Hubble Space Telescope, and Spitzer Space Telescope were part of the effort. The Very Large Array telescope, Socorro, N.M., and the Multi-Element Radio Linked Interferometer Network (MERLIN) telescopes in the United Kingdom also were needed for the finding.

“We’ve seen many jets produced by black holes, but this is the first time we’ve seen one punch into another galaxy like we’re seeing here,” said Dan Evans, a scientist at the Harvard-Smithsonian Center for Astrophysics and leader of the study. “This jet could be causing all sorts of problems for the smaller galaxy it is pummeling.”

Jets from super massive black holes produce high amounts of radiation, especially high-energy X-rays and gamma-rays, which can be lethal in large quantities. The combined effects of this radiation and particles traveling at almost the speed of light could severely damage the atmospheres of planets lying in the path of the jet. For example, protective layers of ozone in the upper atmosphere of planets could be destroyed.

Jets produced by super massive black holes transport enormous amounts of energy far from black holes and enable them to affect matter on scales vastly larger than the size of the black hole. Learning more about jets is a key goal for astrophysical research.

The effect of the jet on the companion galaxy is likely to be substantial, because the galaxies in 3C321 are extremely close at a distance of only about 20,000 light years apart. They lie approximately the same distance as Earth is from the center of the Milky Way galaxy.

A bright spot in the Very Large Array and MERLIN images shows where the jet has struck the side of the galaxy, dissipating some of the jet’s energy. The collision disrupted and deflected the jet.

Another unique aspect of the discovery in 3C321 is how relatively short-lived this event is on a cosmic time scale. Features seen in the Very Large Array and Chandra images indicate that the jet began impacting the galaxy about one million years ago, a small fraction of the system’s lifetime. This means such an alignment is quite rare in the nearby universe, making 3C321 an important opportunity to study such a phenomenon.

It is possible the event is not all bad news for the galaxy being struck by the jet. The massive influx of energy and radiation from the jet could induce the formation of large numbers of stars and planets after its initial wake of destruction is complete. More at NASA.

HUNTSVILLE, Ala — Dec 17, `07 — In December, NASA will begin testing core components of a rocket engine from the Apollo era. Data from the tests will help NASA build the next generation engine that will power the nation’s new Ares launch vehicles on voyages that will send humans to the moon.

NASA will test the engine’s powerpack, a gas generator and turbopumps that perform the rocket engine’s major pumping and combustion work. These components originally delivered propellants to the Apollo-era J-2 engine that fueled the second stage of the Saturn V rockets.

NASA is using these heritage parts to develop a new engine, known as the J2-X, to power the upper stages of both the Ares I crew launch vehicle and the Ares V cargo launch vehicle. Results from the tests will help engineers modify the machinery to meet the higher performance requirements of these two next-generation rockets.

The powerpack tests will be conducted at NASA’s Stennis Space Center near Bay St. Louis, Miss., where the components were installed in late September 2007.

The Ares rockets support NASA’s goal of providing safe, reliable, affordable transportation to support sustainable, long-term exploration. The Ares I is an in-line, two-stage rocket that will transport the Orion crew vehicle to low Earth orbit.

Orion will accommodate as many as six astronauts on missions to the International Space Station or as many as four crew members on lunar missions. The Ares V, a heavy-lift launch vehicle, will enable NASA to launch a variety of science and exploration payloads and key components needed to go to the moon. More at NASA.

Ares I Crew Launch Vehicle; Ares V Cargo Launch Vehicle

Eminent coral scientists have given world leaders more reason to act urgently against climate change, by producing a new report that warns coral reefs will disappear within decades if atmospheric CO2 levels continue to rise.

Their paper, published on Dec14, in the prestigious Science magazine, is the most compelling scientific case yet that unchecked global warming will be a disaster for coral reefs and the 100 million people and one million species depending on them.

CO2 concentration in the earth’s atmosphere is currently 380 parts per million (ppm) but the authors say if future emissions exceed 450ppm we risk losing reefs.

“This is a very ambitious target and should represent yet another reality check for world leaders meeting in Bali,” lead author UQ Professor Ove Hoegh-Guldberg said.

The study has found serious consequences follow on from even small increases in CO2.

“The warmer and more acidic oceans caused by the rise of CO2 from the burning of fossil fuels threaten to destroy coral dominated reef ecosystems, exposing people to flooding, coastal erosion and the loss of food and income from reef-based fisheries and tourism,” Professor Hoegh-Guldberg said.

“Increased CO2 not only warms the climate but also dissolves in sea water making it more acidic. “This, in turn, decreases the ability of corals to produce calcium carbonate, which is what the all-important framework of coral reefs is made of.”More at the University of Queensland.

Anna Basanskaya writes an in-depth article at IEEE’s Spectrum Online on Electricity Over Glass.

Excerpts from Spectrum Online:

“Running a live wire into a passenger jet’s fuel tank seems like a bad idea on the face of it. Still, sensors that monitor the fuel tank have to run on electricity, so aircraft makers previously had little choice. But what if power could be delivered over optical fiber instead of copper wire, without fear of short circuits and sparks? In late May, the big laser and optics company JDS Uniphase Corp., in San Jose, Calif., bought a small Silicon Valley firm with the technology to do just that.

Photonic Power Systems Inc., in nearby Cupertino, has developed a system that uses a laser to inject power in the form of light into a fiber-optic cable and a photovoltaic (PV) array to convert the light back into electricity for powering devices. This method of transferring power can be highly advantageous in situations where sparks or shorts can be a fatal problem [see photo, “Fatal Short“], where electromagnetic interference is more than just an inconvenience—in cellphone base stations, for example, or in pacemakers—and where conventional methods are bulky and cumbersome.

Already, a Photonic Power device is replacing instrument transformers used in the power grid to measure high currents. But lacking the backing of a big company, aircraft makers and other potential customers have been hesitant to design power over optical fiber into their systems, says Jan-Gustav Werthen, the founder of the company and now the engineering director for the photonic power unit at . After all, power over fiber is still a relatively unfamiliar technology.” More at IEEE Spectrum.

Sixty years ago three scientists, , from Bell Laboratory in the US invented the Transistor - the tiny switches at the heart of all silicon chips - replacing vacuum tubes and mechanical relays and revolutionizing the entire electronics world. The team was awarded a Nobel Prize in 1956.

Analyst Malcolm Penn at BBC News writes an in-depth article on the history of transistor: “Following the transistor’s invention by John Bardeen, Walter Brattain and William Shockley at Bell Labs in 1947, no one really knew quite what to do with the invention.

Little more than a laboratory curiosity, it was not until manufacturers realized that the tiny switches would enable products to be built smaller, more reliably and with less power consumption than with conventional electronic valves that the market started to develop.

It took the technologists five years to come up with the first practical transistor application - a hearing aid in 1952.

Eight years after the transistors first laboratory demonstration, launched in December 1955, the watershed product that truly grabbed the world’s attention was the first transistor radio, pocket-sized Regency TR1.

Most of the early device manufacturers were traditional valve companies, soon to be displaced by the fledgling specialist semiconductor companies, the most famous of which being Fairchild Semiconductor in Palo Alto, California and Texas Instruments (TI) in Dallas, Texas.

A spin out from Shockley Semiconductors, Fairchild proved to be a hotbed of technology innovation throughout the whole of the 1960s, including the invention of the Planar manufacturing process - the ability to print tiny patterns on the silicon surface using photographic techniques - still the foundation for today’s mainstream technology.

It was at Fairchild in 1965 that Gordon Moore, one of the co-founders of chip-giant Intel, sketched out his prediction of the pace of silicon technology, subsequently became known as Moore’s law.” More at BBC News, Nobelprize.org.

With the little help from NASA, now you can send your personalized Holiday Greetings 220 miles above the planet Earth.

Select a postcard and send your own personalized message to Expedition 16 crew members, Station Commander Peggy Whitson, and Flight Engineers Yuri Malenchenko and Daniel Tani the International Space Station.

Go ahead, make their day. Send your Greetings NOW.

San Francisco, Calif — Arctic sea ice shrank drastically this summer, reaching a record low, largely because warm ocean currents ate away at the base of the ice sheet, new research says. The arctic ice cap melted at an unprecedented rate in mid-2007, losing an area of ice the size of the state of Alaska, US scientists said at a conference this week.

“The average rate of loss of sea ice every summer year to year up to 2006 was equal to an area the size of West Virginia,” or about 62,800 square kilometers (24,250 square miles), said Michael Steele, the senior oceanographer at the University of Washington in Seattle.

However the decrease in ice between 2006 and 2007 “was almost equivalent to the area of Alaska,” or some 1.7 million kilometers (more than 663,000 square miles), Steele further said.

“It was a huge retreat,” said Steele, one of the researchers who discussed the subject at the annual American Geophysical Union (AGU) conference in San Francisco, California.

At the fall meeting of the American Geophysical Union (AGU) in San Francisco, some scientists argued yesterday that the end of the perennial ice is near.

“If this trend persists, the Arctic would be ice-free [in the summer] by 2013,” said Wieslaw Maslowski of the Naval Postgraduate School in Monterey, California. The researchers told a meeting of the American Geophysical Union that some of the observations had been astonishing.

“The further you go down this path, the harder it is to get back,” observed Don Perovich from the US Army Cold Regions Research and Engineering Laboratory. “Things could come back, but basically it’s the fourth quarter and we’re down two touchdowns,” he said, using an analogy from American football.

The big thin
The extent of the sea ice cover fell to a record minimum in September of 4.13 million sq km, beating the previous low mark, set in 2005, by 23%. This was well publicised at the time, but some of the other “Arctic numbers” have not been so widely reported. Scientists say they demonstrate the step changes in environmental conditions in the northern polar region.

Warmth from below
A big driver behind the melt is the current warmth of the waters in the Arctic. In the summer of 2007, Arctic Ocean surface temperatures hit new maximums.

In waters just north of the Chukchi Sea (above Alaska and Eastern Siberia), sea-surface temperatures (SSTs) were 3.5C warmer than the historical average and 1.5C warmer than the historical maximum. SSTs of 4C were recorded.

This warming was probably the result of having increasing amounts of open water that readily absorb the sun’s rays, a phenomenon known as the ice-albedo feedback: less ice means less reflection and more absorption, leading to more warming and more melting.

“Water that is now circulating just 200 meters below the main ice pack is now significantly warmer than it was just five years ago,” said John Walsh of the University of Alaska, Fairbanks.

New research shows that carbon dioxide, one gas that traps heat in the atmosphere, can be captured as it leaves coal-burning power plants and then permanently sequestered in rock formations thousands of feet below the Earth’s surface.

How Much Time Is Left?
When asked how long the perennial ice might last, many researchers here shrugged their shoulders.

A report from the Intergovernmental Panel on Climate Change released in February predicts that the summer sea ice may disappear early in the next century.

More at National Snow and Ice Data Center, BBC News.

September 9, 2007, sea ice extent compared to animation of Septembers 1979 to 2006 

BALI, Indonesia — Dec 16, `07 — A UN Climate Change Conference adopted a plan to negotiate a new global warming pact on Saturday, Dec 15, after the United States suddenly reversed its opposition to a call by developing nations for technological help to battle rising temperatures.

The adoption came after marathon negotiations overnight, which first settled a battle between Europe and the U.S. over whether the document should mention specific goals for rich countries’ obligations to cut greenhouse gas emissions.

The agreement launches a two-year negotiating process - the “Bali roadmap” - aiming to secure a binding deal at the 2009 UN summit in Denmark.

European and U.S. envoys dueled into the final hours of the two-week meeting over the EU’s proposal that the Bali mandate suggest an ambitious goal for cutting the emissions of industrial nations_ by 25 to 40 percent below 1990 levels by 2020.

EU Welcomes Agreement

European Commission President José Manuel Barroso: “There is only one planet. Together, developed and developing countries can reach success.”

The European Union welcomes the agreement reached at the UN climate change conference in Bali to start formal negotiations on a climate regime for the post-2012 period and on a ‘Bali Roadmap’ that sets out an agenda for these negotiations.

The conference set an end-2009 deadline for completing the negotiations to allow time for governments to ratify and implement the future climate agreement by the end of 2012, when the Kyoto Protocol’s first commitment period ends.

The decision explicitly acknowledges the findings of the recent scientific assessment by the UN Intergovernmental Panel on Climate Change (IPCC) and recognises that deep cuts in global emissions of greenhouse gases will be required to prevent global warming from reaching dangerous levels.

The conference also took important decisions on several other issues, including launching demonstration projects to reduce deforestation, finalising arrangements for a fund to help developing countries adapt to the impacts of climate change, and scaling up financing for transfer of technology to developing countries.

The Bali Roadmap

The conference agreed to launch formal negotiations among the 192 parties to the UN Framework Convention on Climate Change (UNFCCC) on action up to and beyond 2012. These formal negotiations replace a process of informal dialogue that has taken place over the past two years. They will involve the United States, which is a Party to the UNFCCC but not the Kyoto Protocol.

The decision to launch negotiations sets out a ‘roadmap’ to guide them which includes the key building blocks of a future agreement. These are: enhanced mitigation of climate change by limiting or reducing emissions; adaptation to climate change; action on technology development and transfer; and scaling up of finance and investment to support mitigation and adaptation. Four negotiating sessions are scheduled in 2008, starting in March or April.

The decision explicitly acknowledges the findings of the IPCC’s recent Fourth Assessment Report (AR4), emphasises the urgency of addressing climate change expressed in the report and recognises that deep cuts in global emissions will be required to reach the Convention’s objective of preventing dangerous levels of climate change.

In parallel with the negotiations under the climate change Convention, the 176 parties to the Kyoto Protocol will continue negotiations already under way on new post-2012 emissions targets for developed countries that are in the Protocol. For this negotiating ‘track’ the Bali conference agreed on an intensive work schedule for 2008 to accelerate progress.

A review of the Protocol at the next UN climate conference, in December 2008, will help to inform these negotiations on future commitments by developed countries.

The negotiations under both ‘tracks’ – Convention and Protocol - will be completed at the UN climate change conference to be held at the end of 2009 in Copenhagen. The EU and many other Parties insisted on this simultaneous deadline to ensure a coherent result.

More at UN Bali Reports,  EU.

Cape Canaveral, Florida — Dec 09, ‘07 — Space shuttle Atlantis’ STS-122 mission to the International Space Station is targeted to launch no earlier than Jan 02, ‘08 from NASA’s Kennedy Space Center. The liftoff date depends on the resolution of a problem in a fuel sensor system.

Early Sunday, one of the four engine cutoff, or ECO, sensors inside the liquid hydrogen section of Atlantis’ external fuel tank gave a false reading while the tank was being filled. NASA’s current Launch Commit Criteria require that all four sensors function properly.

The sensor system is one of several that protect the shuttle’s main engines by triggering their shut down if fuel runs unexpectedly low. Atlantis’ scheduled launch on Thursday, Dec 06, was delayed after two liquid hydrogen ECO sensors gave false readings.

The crew of STS-122 will be heading back to Houston on Sunday evening but before leaving they expressed their gratitude for the effort to launch.

The main objective of Atlantis’ 11-day mission is to install and activate the European Space Agency’s Columbus laboratory, which will provide scientists around the world the ability to conduct a variety of life, physical and materials science experiments. More at NASA.

BERKELEY, Calif — In the middle of the South Pacific, about 12 miles west of Tahiti, is a tropical island that soon will emerge as a model ecosystem, thanks to the efforts of a U.S.-French research team led by University of California, Berkeley, biologists.

Moorea, home of the UC Berkeley Richard B. Gump South Pacific Research Station and France’s Centre de Recherches Insulaires et Observatoire de l’Environnement (CRIOBE), will be the site of an ambitious project to create a comprehensive inventory of all non-microbial life on the island. Supported by a new $5.2 million grant from the Gordon and Betty Moore Foundation, the Moorea Biocode Project over the next three years will send researchers climbing up jagged peaks, trekking through lush forests and diving down to coral reefs to sample the French Polynesian island’s animal and plant life.

“This is the first effort to catalog and barcode an entire tropical ecosystem, from the bottom of the ocean to the top of the mountains,” said George Roderick, UC Berkeley professor of environmental science, policy and management, curator of the campus’s Essig Museum of Entomology and co-principal investigator of the project.

“We’re constructing a library of genetic markers and physical identifiers for every species of plant, animal and fungi on the island, then making that database publicly available as a resource for ecologists and evolutionary biologists around the world,” he said. Roderick is a former director of the Gump Station, where the National Science Foundation has established one of its 26 Long Term Ecological Research sites (the Moorea Coral Reef LTER).

The work will expand upon a 2005 pilot biocode project at Moorea, also funded by the Moore Foundation, which tested the feasibility of such a large undertaking. That project was limited to genetic barcoding of the fishes, geckos and selected insects.

In the spirit of leaving no stone unturned, larvae and contents of animals’ guts will be fair game in the full project. “We’ll check the gut contents of a gecko, spider or fish to find out what it’s eating,” said Chris Meyer, who managed the pilot project while he was a researcher at UC Berkeley.

There are an estimated 5,000 plant, animal and fungal species on Moorea, although that number may change as cryptic communities and organisms are sampled and genetic markers reveal novel species. “I’d be disappointed if we don’t hit at least 10,000 species,” said Meyer.

The number of species on the 51-square-mile island of Moorea is small compared with that on larger islands and continents. In California, for example, the number of insect species alone tops 30,000. Yet, the researchers say Moorea provides the right balance of being small enough to be studied manageably while being sufficiently complex to reliably serve as a microcosm of the challenges faced in larger ecosystems.

At the end of the three-year project, the Moorea Biocode Project will have sequenced a whole tropical ecosystem. “Like the Human Genome Project, however, this unprecedented accomplishment is, in some ways, merely a necessary first step,” said Davies. “Its goal is to accelerate progress on the larger questions: how to maintain a healthy ecosystem and what to do when things go wrong.” More at UC Berkeley, Berkeley.edu/Biocode. Photo Credits: UC Berkeley.

Cataloging an ecosystem
UC Berkeley biologist George Roderick talks about working on the South Pacific island of Moorea and an ambitious project to create a genetic inventory of all non-microbial life in the island’s ecosystem. (2:06 min. Flash video)

Cape Canaveral, Florida — Dec 08, ‘07 — Space shuttle Atlantis is scheduled to launch Sunday, Dec 9, at 3:21 pm EST, from NASA’s Kennedy Space Center in Florida. Shuttle program managers made the liftoff decision after three days of reviewing data on a problem with fuel sensors.

Atlantis’ scheduled launch on Thursday was delayed after two of the four engine cutoff, or ECO, sensors in the shuttle’s external fuel tank gave false readings. A third sensor failed after the tank was drained of fuel. The sensor system is one of several that protect the shuttle’s three main engines by triggering their shut down if fuel runs unexpectedly low.

During a Mission Management Team meeting Saturday, NASA leaders decided to fuel the tank Sunday and monitor the status of the sensor system. If all four ECO sensors inside the liquid hydrogen section of the tank perform as expected, the countdown will proceed toward the planned liftoff. NASA Television coverage of the tank loading will start Sunday at 6 a.m., with launch coverage beginning at 10 a.m.

During Atlantis’ 11-day mission to the International Space Station, the astronauts will install and activate the European Space Agency’s Columbus laboratory, which will expand the station’s scientific research capabilities. Crew members for the STS-122 mission are Commander Steve Frick, Pilot Alan Poindexter, mission specialists Leland Melvin, Rex Walheim, Stanley Love and European Space Agency astronauts Hans Schlegel from Germany and Leopold Eyharts from France. More at NASA.

Cape Canaveral, Florida — Dec 07, ‘07 — NASA is targeting the launch of space shuttle Atlantis no earlier than Sunday, Dec 9, at 3:21 p.m. EST from the Kennedy Space Center, Fla. Shuttle program managers made the decision after a meeting Friday to review data on a problem with a fuel cutoff sensor system inside the shuttle and its external fuel tank.

Because of the length of the meeting, the managers agreed that targeting Sunday would allow the launch and management teams appropriate time to rest and prepare. The Mission Management Team will meet Saturday at 1 p.m. to decide whether to make a Sunday attempt. A news conference will be held after the meeting’s conclusion.

Atlantis’ scheduled launch Thursday was delayed after two ECO sensors gave false readings. A third sensor failed after the tank was drained of fuel. The fuel cutoff sensor system is one of several that protects the shuttle’s main engines by triggering their shut down if fuel runs unexpectedly low

During Atlantis’ 11-day mission to the International Space Station, the shuttle and station crews will work with ground teams to install and activate the European Space Agency’s Columbus laboratory. The new lab will expand the station’s scientific research capabilities. More at NASA.

Nanotubes may have high-tech applications, study involving UCR engineers reports.

RIVERSIDE, Calif — Dec 07, ‘07 — Two engineers at the University of California, Riverside are part of a binational team that has found semiconducting nanotubes produced by living bacteria – a discovery that could help in the creation of a new generation of nanoelectronic devices.

The research team believes this is the first time nanotubes have been shown to be produced by biological rather than chemical means. It opens the door to the possibility of cheaper and more environmentally friendly manufacture of electronic materials.

Study results appear in today’s issue of the early edition of the Proceedings of the National Academy of Sciences.

The team, including Nosang V. Myung, associate professor of chemical and environmental engineering in the Bourns College of Engineering, and his postdoctoral researcher Bongyoung Yoo, found the bacterium Shewanella facilitates the formation of arsenic-sulfide nanotubes that have unique physical and chemical properties not produced by chemical agents.

“We have shown that a jar with a bug in it can create potentially useful nanostructures,” Myung said. “Nanotubes are of particular interest in materials science because the useful properties of a substance can be finely tuned according to the diameter and the thickness of the tubes.”

The whole realm of electronic devices which power our world, from computers to solar cells, today depend on chemical manufacturing processes which use tremendous energy, and leave behind toxic metals and chemicals. Myung said a growing movement in science and engineering is looking for ways to produce semiconductors in more ecologically friendly ways.

Two members of the research team, Hor-Gil Hur and Ji-Hoon Lee from Gwangju Institute of Science and Technology (GIST), Korea, first discovered something unexpected happening when they attempted to remediate arsenic contamination using the metal-reducing bacterium Shewanella. Myung, who specializes in electro-chemical material synthesis and device fabrication, was able to characterize the resulting nano-material.

The photoactive arsenic-sulfide nanotubes produced by the bacteria behave as metals with electrical and photoconductive properties. The researchers report that these properties may also provide novel functionality for the next generation of semiconductors in nano- and opto-electronic devices.

In a process that is not yet fully understood, the Shewanella bacterium secretes polysacarides that seem to produce the template for the arsenic sulfide nanotubes, Myung explained. The practical significance of this technique would be much greater if a bacterial species were identified that could produce nanotubes of cadmium sulfide or other superior semiconductor materials, he added.

“This is just a first step that points the way to future investigation,” he said. “Each species of Shewanella might have individual implications for manufacturing properties.” More at University of California, Riverside.

Cape Canaveral, Florida  — Dec 07, ‘07 — The launch of NASA’s space shuttle Atlantis will take place no earlier than Saturday, Dec 8, at 3:43 p.m. EST. Thursday’s scheduled liftoff from NASA’s Kennedy Space Center, Fla., was postponed because of a problem with a fuel cutoff sensor system inside the shuttle’s external fuel tank.

The fuel cutoff sensor system is one of several that protect the shuttle’s main engines by triggering their shut down if fuel runs unexpectedly low. Launch Commit Criteria require that three of the four sensor systems function properly before liftoff.

Space Shuttle Program managers will hold a Mission Management Team meeting Friday at 3 p.m. to discuss the issue and determine the steps necessary to start a new launch countdown. A news conference will be held at about 6 p.m. after the meeting’s conclusion.

On Thursday morning, two of the four engine cutoff, or ECO, sensors inside the liquid hydrogen section of the tank failed a routine prelaunch check. Following the launch postponement, the tank’s liquid oxygen and liquid hydrogen were drained. While the tank was being emptied, engineers monitored and collected data on the liquid hydrogen sensors that failed. During that process, another sensor gave a false reading, indicating that the tank was “wet,” when it was dry. All ECO sensors are now indicating dry as they should be.

During Atlantis’ 11-day mission to the International Space Station, the shuttle and station crews will work with ground teams to install and activate the European Space Agency’s Columbus laboratory. The new lab will expand the station’s scientific research capabilities.

More at NASA.

PASADENA, Calif — Dec 06, ‘07 –  The California Institute of Technology and the University of California have received a $200 million commitment over nine years from the Gordon and Betty Moore Foundation toward the further development and construction of the Thirty-Meter Telescope (TMT). Funding under this commitment will be shared equally between the two universities, with matching gifts from the two institutions expected to bring the total to $300 million. When built, TMT will be the largest telescope in the world.

The telescope design is being developed by a U.S.-Canadian team that includes the California Institute of Technology, the University of California, and the Association of Canadian Universities for Research in Astronomy (ACURA), with completion of the design development expected by March 2009.

With the TMT, astronomers will be able to locate and analyze the light from the first stellar systems born soon after the Big Bang, determine the physical processes governing the formation and evolution of galaxies like our own Milky Way, study planet formation around nearby stars, and make observations that test the fundamental laws of physics. However, it is the unexpected discoveries that TMT will make that will likely be the most exciting.

TMT will consist of a primary mirror with 492 individual 1.45-meter segments that together measure 30 meters in diameter, providing more than eight times the collecting area of the current largest telescope. All segments will be under precision computer control so that they will work together as a single mirror. This revolutionary technology was developed for the 10-meter mirrors in the two Keck telescopes in Hawaii.

The TMT will not only be the largest optical-infrared telescope in the world, but it will also be at the forefront of technology in virtually every aspect of its design. Adaptive optics (AO) will allow the TMT to achieve a resolution superior to that of the Hubble Space Telescope.

The TMT AO system will use six laser beams to create six luminous spots in a layer of sodium atoms high in Earth’s upper atmosphere. These bright artificial stars serve as references for measuring the turbulence in the atmosphere, allowing the AO system to compensate for blurring of starlight by Earth’s fluctuating atmosphere. This technology was pioneered at the Lick Observatory 3-meter telescope and has been developed further at the Palomar 5-meter and Keck 10-meter telescopes. More at Caltech.

Cape Canaveral, Florida — Dec 06, 07 — During tanking, two of four LH2 Engine Cutoff (ECO) sensors failed to respond appropriately, which is a Launch Commit Violation. The requirement to proceed calls for 3 of 4. The launch was scrubbed at 9:56 a.m. EST on the recommendation of Launch Director Doug Lyons.

Mission Management Team Chairman LeRoy Cain concurred following a short briefing on the issue. The ice inspection team will proceed with an abbreviated vehicle inspection prior to offloading the LO2 and LH2 and recycle for a launch attempt tomorrow, at 4:09 p.m.

A press briefing is tentatively scheduled for 4 p.m. EST.

The sensors are part of a safety system that ensures the shuttle’s main engine does not switch off too early or too late. At least three must be working perfectly before the shuttle can be cleared for launch. In flight, an onboard computer shuts the engines down when a majority of the sensors declare the main fuel tank to be empty.

Engineers are not only checking the sensors, but also surrounding circuitry for faults. Earlier this morning, engineers discovered a minor leak in equipment used to fill smaller liquid hydrogen tanks aboard the shuttle. The gas is used to power fuel cells that provide electricity during the voyage. More at NASA.

IRVINE, Calif — Dec 05, ‘07 — The herbal extract of a yellow-flowered mountain plant indigenous to the Arctic regions of Europe and Asia increased the lifespan of fruit fly populations, according to a University of California, Irvine study.

Flies that ate a diet rich with Rhodiola rosea, an herbal supplement long used for its purported stress-relief effects, lived on an average of 10 percent longer than fly groups that didn’t eat the herb. Study results appear in the online version of Rejuvenation Research.

“Although this study does not present clinical evidence that Rhodiola can extend human life, the finding that it does extend the lifespan of a model organism, combined with its known health benefits in humans, make this herb a promising candidate for further anti-aging research,” said Mahtab Jafari, a professor of pharmaceutical sciences and study leader. “Our results reveal that Rhodiola is worthy of continued study, and we are now investigating why this herb works to increase lifespan.”

In their study, the UC Irvine researchers fed adult fruit fly populations diets supplemented at different dose levels with four herbs known for their anti-aging properties. The herbs were mixed into a yeast paste, which adult flies ate for the duration of their lives. Three of the herbs – known by their Chinese names as Lu Duo Wei, Bu Zhong Yi Qi Tang and San Zhi Pian – had no effect on fruit fly longevity, while Rhodiola was found to significantly reduce mortality. On average, Rhodiola increased survival 3.5 days in males and 3.2 days in females.

Rhodiola rosea, also known as the golden root, grows in cold climates at high altitudes and has been used by Scandinavians and Russians for centuries for its anti-stress qualities. The herb is thought to have anti-oxidative properties and has been widely studied.

Soviet researchers have been studying Rhodiola since the 1940s on athletes and cosmonauts, finding that the herb boosts the body’s response to stress. And earlier this year, a Nordic Journal of Psychiatry study on people with mild-to-moderate depression showed that patients taking a Rhodiola extract called SHR-5 reported fewer symptoms of depression than did those who took a placebo.

Jafari said she is evaluating the molecular mechanism of Rhodiola by measuring its impact on energy metabolism, oxidative stress and anti-oxidant defenses in fruit flies. She is also beginning studies in mice and in mouse and human cell cultures. These latter studies should help understand the benefits of Rhodiola seen in human trials. More at University of California, Irvine.

Cape Canaveral, Florida — Dec 05, ‘07 — The launch team at NASA’s Kennedy Space Center is continuing its steady march toward a lift off Thursday afternoon for space shuttle Atlantis. The countdown is proceeding smoothly, NASA Test Director Jeff Spaulding said Wednesday.

Technicians and engineers at the launch pad have several steps ahead of them Wednesday. The most visible milestone will come in the evening when the Rotating Service Structure is moved to its launch position where it will be out of the way of Atlantis. The gantry encloses much of the shuttle while it is on the launch pad and gives workers access to critical areas of the shuttle and its payload.

The weather forecast calls for a 90 percent chance of acceptable conditions at launch time.

“The vehicle’s looking good and the weather’s looking good, too,” Shuttle Weather Officer Kathy Winters said. More at NASA.

Houston — Dec 05, ‘07 — On August 07, 2008, after 20 years of hype, disappointment, blunders, triumphs and peerless glittering vistas of space and time, and four years after NASA decided to leave the Hubble Space Telescope to die in orbit, setting off public and Congressional outrage, a group of astronauts will ride to the telescope aboard the space shuttle Atlantis with wrenches in hand. Says NYTimes.

That, at least, is the plan.

Servicing Mission 4
NASA managers officially are targeting August 7, 2008, for the launch of the fifth and final space shuttle servicing mission to the Hubble Space Telescope. During the 11-day flight, Atlantis’ seven astronauts will repair and improve the observatory’s capabilities through 2013.

Mission planners have been working since last fall, when the flight was announced, to determine the best time in the shuttle manifest to support the needs of Hubble while minimizing the impact to International Space Station assembly. NASA also will support a “launch on need” flight during the Hubble mission. In the unlikely event a rescue flight becomes necessary, shuttle Endeavour currently is planned to lift off from Launch Pad 39-B at NASA’s Kennedy Space Center, Fla. However, managers constantly are evaluating the manifest to determine the best mission options.

Shuttle missions beyond the Hubble flight, designated STS-125, still are being assessed. Shuttle and station program officials will continue to consider options for the remainder of the shuttle flights to complete construction of the space station by 2010, when the fleet will be retired. Those target launch dates are subject to change.

More at NASA, NYTimes.