(PhysOrg.com) -- About two weeks ago, Herschel was weighed to record its dry mass before the satellite was fuelled with 256 kg of liquid hydrazine. After switching it on to confirm normal function, engineers integrated the ...
Space Exploration
Apr 22, 2009
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(PhysOrg.com) -- For millions of years, green plants have employed photosynthesis to capture energy from sunlight and convert it into electrochemical energy. A goal of scientists has been to develop an artificial version ...
Other
Mar 11, 2009
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(PhysOrg.com) -- NASA managers completed a review Friday of space shuttle Discovery's readiness for flight and selected the official launch date for the STS-119 mission. Commander Lee Archambault and his six crewmates are ...
Space Exploration
Mar 6, 2009
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Deftly using a pair of tweezers, Scott Geib pulls apart the insides of a yellowish, wormlike critter - the larva of a tree-devouring pest called the Asian long-horned beetle. Something in the insect's gut allows it to make ...
Energy & Green Tech
Mar 1, 2009
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(PhysOrg.com) -- A novel technology for synthesising chemicals from plant material could produce liquid fuel for just over €0.50 ($0.65) a liter, say German scientists. But only if the infrastructure is set up in the right ...
Energy & Green Tech
Jan 29, 2009
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