October 24, 2013 Watch as astronaut Karen Nyberg, who's now aboard the International Space Station, uses a single strand from her head to push off and float around.
Earthrise, seen from Apollo 8 as it circles the moon in 1968.
January 15, 2013 In a breathtaking video, astronauts talk of the Overview Effect: how their vision of the Earth — and our role in its future — changed once they saw it from space. It's high time we take their views seriously and act as a species to preserve our future.
Astronaut Alan Shepard became the first American in space in 1961. He later developed an inner ear problem that grounded him from space flight until an operation cured him.
December 13, 2012 Commercial space travel is becoming a reality. Now people who have longed to go into space can buy a ticket, if they've got the cash. But are they healthy enough to make the voyage?
November 16, 2011 NASA is advertising for new astronauts and would like to train them to travel as far as Mars.
September 7, 2011 The longer missions of the future, the training needed to fly on Russian ships and other factors combine to create the need for 5 to 10 more, according to the group's report.
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