Friday, 20 September 2013

Private Spacecraft Lifts Off With Space Station Supplies

Orbital Sciences' Cygnus spacecraft has successfully launched from NASA's Wallops Flight Facility in Virginia on its way to becoming the second private vehicle to resupply the International Space Station.

Space.com says:

"The unmanned Cygnus spacecraft and its Antares rocket soared into orbit with a tremendous roar at 10:58 a.m. EDT (1458 GMT) today from [Wallops] — a huge success for the commercial spaceflight company Orbital Sciences Corp., which built both vehicles. The spacecraft is now chasing the space station and is due to arrive early Sunday (Sept. 22), when it will be captured by astronauts using the outpost's robotic arm."

Cygnus bears "1,300 pounds of food, clothing and goodies for the astronauts," The Associated Press says.

Orbital Sciences and billionaire Elon Musk's SpaceX Corp. have been contracted to supply the orbiting outpost since the space shuttle was retired two years ago. Two SpaceX Dragon robotic capsules have already been up on resupply missions, the most recent one in March.


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[News Focus] Neuroscience: Concentrating on Kindness

Science 20 September 2013:
Vol. 341 no. 6152 pp. 1336-1339
DOI: 10.1126/science.341.6152.1336 Neuroscience Neuroscience Neuroscientist Tania Singer, a director at the Max Planck Institute for Human Cognitive and Brain Sciences in Leipzig, has embarked on an ambitious study involving 160 participants to find out whether meditation can make people more compassionate. Meditation research does not have a very rigorous reputation, and some scientists are skeptical about the work, but Singer—who has long practiced meditation herself—hopes her study will be methodologically rigorous enough to withstand criticism. By increasing compassion, she hopes her research will contribute to a better world.


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[News Focus] Predators in the 'Hood

Science 20 September 2013:
Vol. 341 no. 6152 pp. 1332-1335
DOI: 10.1126/science.341.6152.1332 Once hunted nearly to extinction in the lower 48, America's biggest predators are making a remarkable comeback. Their return has sparked a range of emotions, from surprise and joy to demands that the animals be harshly controlled, if not shot outright. So scientists, conservationists, and wildlife managers are all scrambling to figure out how to best manage animals that literally live next door and are capable of killing humans.


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On This Day in Science History - September 21 - Bubble Chambers

Photo of Bubble Tracks from a Bubble Chamber/CERN
September 21st is Donald Glaser's birthday. Glaser is an American physicist and neurobiologist who was awarded the 1960 Nobel Prize in Physics for the invention of the bubble chamber.

The bubble chamber is a detection device for particle physics that works on the same basic principle as the cloud chamber. A vessel is filled with a transparent liquid (usually liquid hydrogen) heated to just below its boiling point and aligned with a magnetic field. When the scientist is ready to take a reading, a piston is used to expand the chamber. This causes the liquid to become superheated. Any charged particles passing through the vessel will ionize the liquid and cause bubbles to appear along the particle's path. The bubble density and path shape can give information on the type, charge and lifetime of the particles.

Bubble chambers have been replaced by newer methods of detection in modern particle research laboratories, but they still have a place in demonstrations and education. The photographs taken of bubble trails bring the invisible world of particle physics to a light a student can see, measure and understand. Find out what else occurred on this day in science history.


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Powerful Typhoon Has Hong Kong In Its Sights

In this NASA image released Thursday, Typhoon Usagi is seen nearing Taiwan and the Philippines.

NASA Goddard MODIS Rapid Response Team In this NASA image released Thursday, Typhoon Usagi is seen nearing Taiwan and the Philippines. In this NASA image released Thursday, Typhoon Usagi is seen nearing Taiwan and the Philippines.

NASA Goddard MODIS Rapid Response Team

Super-typhoon Usagi — the equivalent of a Category 5 hurricane with sustained winds of 150 mph — is expected to skirt the Philippines and Taiwan before slamming into the Chinese coast near Hong Kong over the weekend.

The storm is forecast to skirt the coast of Luzon in the northern Philippines on Friday and brush the southern tip of Taiwan on Saturday. Although it is expected to be downgraded in strength by the time it hits Hong Kong on Sunday evening, Typhoon Usagi could still do considerable damage.

On Friday, the Hong Kong Observatory showed a track for the storm passing directly over the Chinese territory.

"By that time the weather will deteriorate significantly, with high winds and rough seas," it said. "If you are planning to travel out of Hong Kong or [have] other activities [scheduled], please be reminded that changes in the weather may affect your plans."

The South China Morning Post quotes typhoon expert Johnny Chan Chung-leung, dean of the School of Energy and Environment at City University of Hong Kong, as saying Usagi could be on par with Typhoon Megi in 2010 and some of the major storms to hit Hong Kong in the 1980s.


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U.S. Revives Aid Program for Clean Energy

The Obama administration has decided to revive a controversial loan guarantee program at the Energy Department, administration officials said on Thursday, even as the program remains under Congressional scrutiny after losing hundreds of millions in taxpayer money on investments in failed green energy start-ups like the solar module maker Solyndra.

This time, though, the program would devote as much as $8 billion to helping industries like coal and oil make cleaner energy. Although the program, which does not require Congressional approval, would support a wide range of technologies, it could help coal-fired power plants find a way to keep their emissions from escaping into the atmosphere, department officials said.

Officials say the federal subsidies are necessary to support the development of technologies that are too complex, unproven and expensive for investors and private companies to pursue on their own, assertions that have already stirred criticism from opponents who see the program as too risky and a misuse of taxpayer money.

The program’s renewal comes just as the administration is releasing stringent environmental rules that would severely restrict air pollution at new coal plants.

“We have a real problem, and that’s, ‘How do we get new technology to market?’ ” said Peter W. Davidson, executive director of the loan program office at the Energy Department. “We partner with industry developers and entrepreneurs to demonstrate a new technology at industrial scale or utility scale, and hopefully once that technology is proven by deployment at scale, we step out of the way,” and let the private debt markets take over.

A spokeswoman for the House Committee on Energy and Commerce, which is controlled by Republicans, who have been critical of the loans in the past, took a skeptical view of the program.

“The D.O.E. loan guarantee program’s history of mismanagement, bankruptcies and failure to deliver the jobs promised raises significant concerns about risking billions in additional taxpayer dollars,” Charlotte Baker said. “We are supportive of efforts to encourage the development of advanced fossil fuel technologies, but we are skeptical that federal loan guarantees are the best way” to bring this about.

Analysts and climate experts also questioned whether the program, which was originally established in 2005 and whose new guidelines will be completed this fall, could make the technologies economically viable on a mass scale. There are currently no ventures in the United States that achieve this, despite years of government-sponsored research and development, according to the Congressional Research Service. An ambitious clean-coal demonstration project called FutureGen, proposed by President George W. Bush in 2003, has yet to advance beyond the early development stages.

“It seems sound policy for the administration to provide these loan guarantees,” said Paul Bledsoe, a former energy aide in the Clinton White House who is now a senior fellow at the German Marshall Fund. “The real question becomes, ‘Is that adequate to actually prompt significant numbers of new builds?’ and I think that the answer so far is no.”

The Energy Department’s loan program was created in 2005 under President Bush to spur commercial adoption of innovative technologies or those that avoided, reduced or permanently stored pollutants. In 2008, Congress added another section, for more fuel-efficient cars, and a year later created a temporary program to encourage renewable energy and electrical transmission projects.

That temporary program, which was responsible for the Solyndra loan, has since expired, but the department still has about $50 billion left that could be lent, with a large chunk earmarked for nuclear projects.

The department points to several successful investments from the loan program. Ernest J. Moniz, the energy secretary, has pointed to Tesla Motors’ early repayment of $465 million as an example. Mr. Davidson said that since his office financed the first six large-scale photovoltaic solar farms in 2010 and 2011, 10 big solar power plants had started or finished construction without any federal money. On a $34 billion loan portfolio, the government has lost about $800 million, he said. That’s about 2.3 percent, and only a small fraction of the $10 billion Congress set aside to cover losses.


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[News of the Week] This Week's Section

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