(PhysOrg.com) -- Many rockets, satellites, and spacecraft are driven by hydrazine, sometimes with an oxidizing agent like nitric acid or dinitrogen tetroxide. When filling tanks with these highly toxic substances, technicians ...
Materials Science
May 27, 2011
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Water (H2O) is a unique molecule that holds amazing properties. Scientists have a good grasp of the structure and chemistry of individual molecules of water. But understanding how large numbers of these molecules move and ...
Condensed Matter
Nov 29, 2010
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Hydrogen is the most abundant element in the universe and is a major component of giant planets such as Jupiter and Saturn.
General Physics
Jun 23, 2010
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In the quest to make hydrogen as a clean alternative fuel source, researchers have been stymied about how to create usable hydrogen that is clean and sustainable without relying on an intensive, high-energy process that outweighs ...
Nanophysics
Nov 12, 2009
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(PhysOrg.com) -- There are so many stars in our galaxy that even if planets with complex life (animals and plants) are rare - say one for every billion stars - there could still be dozens here in the Milky Way. But we are ...
Astronomy
Sep 15, 2009
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NASA on Thursday delayed the launch of the space shuttle Discovery until 0359 GMT Saturday so mission specialists could review tests on a faulty valve, the US space agency said.
Space Exploration
Aug 27, 2009
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(AP) -- NASA called off the launch of space shuttle Discovery on Tuesday, the second day in a row the liftoff was scrubbed, this time because of a bad fuel valve.
Space Exploration
Aug 25, 2009
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Engineers from the US space agency NASA think they have discovered the cause of a hydrogen leak which twice delayed a high-profile shuttle launch this month, according to the agency.
Space Exploration
Jun 23, 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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Europe's next rocket, Ariane 6, passed all its qualification tests in preparation for its first flight, and the full-scale test model has been removed from the launch pad to make way for the real rocket that will ascend to ...
Space Exploration
Apr 5, 2024
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