With NASA's leadership shuffle, big goals and uncertain future
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After three years, Sean O'Keefe has announced his resignation from NASA's top post.
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The loss of the shuttle Columbia was not just a low point in NASA history, but was also a &quot;cathartic moment&quot; that led to reforming the space agency and pushed the nation
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Washington - Nasa administrator Sean O&#39;Keefe is expected to resign his job at the helm of the US space agency this week, according to news reports on Sunday.
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A flurry of space tourism milestones and announcements in recent days signals that human spaceflight is shifting from governments to the private sector, space experts say.
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THE WINNER: Lockheed Martin Corp. beat out a competing team made up of Northrop Grumman Corp. and Boeing Co. for a contract to design and build the next-generation crew exploration vehicle, Orion, which NASA hopes returns astronauts to the moon by 2020, and later to Mars.
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We and our machines are about to go through a rocky transition as the machines get smarter and take over more tasks.
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NASA&#39;s next leader must wholeheartedly back the US president&#39;s space plan - which focuses on human space flight - says departing boss Sean O&#39;Keefe.
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ABC says, &quot;When NASA&#39;s Space Shuttle Columbia broke apart over East Texas almost two years ago, killing its crew of seven, many wondered: What will become of the struggling space agency?
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By awarding the contract for the next generation, Orion space exploration vehicle to Lockheed Martin, NASA finally got something right. But will Washington have the political will to complete the trip
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NASA administrator Sean O&#39;Keefe on Monday resigned after three years in charge of the US space agency which included the Columbia shuttle disaster, a NASA spokesman said.
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Associate Administrator Craig E. Steidle, the retired Navy rear admiral who runs NASA's not-so-new-anymore Office of Exploration Systems, went to work for NASA after the top brass lured him in as a consultant.
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NASA Administrator Sean O'Keefe resigned on Monday after three tumultuous years at the U.S. space agency, which were shadowed by the fatal break-up of shuttle Columbia and its painful aftermath.
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A new report released by an American Physical Society (APS) Special Committee on NASA Funding for Astrophysics has questioned the space agency's Moon, Mars and Beyond initiative. The APS assessment warns that t  he cost of overcoming technological challenges to make real the plan could far exceed budgetary projections and that numerous&nbsp;approved science programs could be jeopardized.
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WASHINGTON -- NASA&#39;s director has turned in his resignation, ending three years marked by a space tragedy and extra scrutiny of the space agency.
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The NASA decision is likely to change the dynamics of the space business, setting Lockheed up to be the dominant player in space exploration.
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The space program may be troubled now, but it did produce some cutting-edge breakthroughs in astronaut comfort. Inside Lisa Nowakâs travel wear.
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The team behind Beagle 2, the failed mission to land on Mars and search for life, have unveiled plans for a successor. Professor Colin Pillinger, lead