NASA chief not worried about climate
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The head of NASA drew criticism from scientists when he said he was not sure global warming was a problem and added that it would be "arrogant" to assume the world's climate should not change in the future.
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Fred Thompson said Saturday he's not consumed with winning the White House and that a president with too much fire in the belly is not necessarily a good thing in a dangerous world.
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An ex-employee of the US space agency, Nasa, has pleaded not guilty to charges he falsified reports of safety checks on the space shuttle Discovery.
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The arrest of an astronaut on an attempted murder charge has not distracted the crew of the upcoming space shuttle mission, even though she had been scheduled to be part of the flight's ground team, the shuttle's commander said Thursday.
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Research suggests that the sun's activity is not responsible for the onset of global warming.
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NASA's hurricane-damaged spaceport should be able to withstand the wind and rain from Ivan if the storm stays well to the west, the Kennedy Space Center's director said Saturday.
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CAPE CANAVERAL, Fla. NASA&#39;s departing boss, Sean O&#39;Keefe, says he does NOT regret canceling the last shuttle mission to the Hubble Space Telescope _ or anything else during his three years on the job.
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Global warming has had little noticeable impact in Washington, DC Politicians in the nation&#39;s capital have been reluctant to set limits on the carbon dioxide pollution that is expected to warm the planet by 4 to 7 degrees Fahrenheit during the next century
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One of the world's top business leaders expresses his fears over the "daunting" challenge of climate change.
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The head of the Environmental Protection Agency faced down hostile critics Tuesday in his first committee appearance before the Democratic-led Congress, denying accusations that agency decisions last year rolled back environmental safeguards.
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NASA&#39;s departing chief, Sean O&#39;Keefe, on Friday defended his decision to pursue a robotic repair mission to the Hubble Space Telescope, days after a panel of scientists said a shuttle mission would be better.
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The commander of next week's space shuttle flight said Friday that she and her crew back NASA's decision to skip wing repairs despite opposition from half the engineers who took part in the launch review.
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Global warming has had little noticeable impact in Washington, DC Politicians in the nation&#39;s capital have been reluctant to set limits on the carbon dioxide
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U.S. and Russian officials have said the International Space Station was not threatened by debris from a satellite destroyed by China.
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The resignation Monday of NASA Administrator Sean  O'Keefe comes at a time when the agency has a budgetary window of opportunity to  flex its space exploration muscle, but must still deal with an agenda of thorny  issues.
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Research suggests that the Sun's activity is not responsible for the onset of global warming.
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As the White House search for NASA Administrator Sean O&#39;Keefe&#39;s successor began Monday, the emerging list of candidates indicated that the next space chief will have fewer