<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>NASA and the United Nations Office for Outer Space Affairs (UNOOSA) have launched a global photography competition to highlight how the vantage point of space helps us better understand our
<p></p><p style="text-align:center" class="small"></p> <p>NASA unveiled an Exploration Design Challenge on Monday to give students from kindergarten through 12th grade the opportunity to play a unique role in the future of human
<p>The record-breaking simulated mission to Mars has ended with smiling faces after 17 months. Mars500’s six brave volunteers stepped out of their ‘spacecraft’ today to be welcomed by the waiting