A towering 355-foot-tall mobile launch tower was hauled to launch pad 39B Wednesday for structural tests and fit checks before modifications to support the agency's planned heavy-lift Space Launch System rocket.
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NASA unveiled the design of a new post-shuttle super rocket Wednesday intended to boost astronauts on flights to nearby asteroids and, eventually, Mars. If fully funded, initial test flights are expected in 2017. Read More...

NASA Administrator Charles Bolden has asked outgoing space shuttle Program Manager John Shannon to carry out an independent review of competing options for eventual manned missions beyond low-Earth orbit, officials say. Read More...

NASA's twin Voyager spacecraft, approaching the edge of the solar system, have detected signs of what may be gigantic magnetic bubbles at the interface between the sun's influence and interstellar space. Read More...

NASA will develop a version of the Bush administration's Orion capsule for future deep space missions beyond Earth orbit, the agency announced Tuesday. But it's not yet known when the spacecraft might fly. Read More...