<p></p> <p>NASA has selected four astronauts to train and prepare for commercial spaceflights that will return American launches to U.S. soil and further open up low-Earth orbit transportation to the private
<p></p> <p>After more than six months of performing scientific research and technology demonstrations in space, three International Space Station crew members are scheduled to depart the orbiting laboratory Thursday, June 11.
<p style="text-align:center"></p> <p>NASA astronaut Michael Foale has retired, ending a 26-year space agency career that included 375 days in space during six space shuttle missions and extended stays aboard two space
<p>Expedition 31 Flight Engineer Don Pettit of NASA has taught more than half a million internet viewers how microgravity affects scientific principles by using everyday objects on the International Space