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Nov 23, 2015 01:00 PM ET // Irene Klotz
When considering landing sites on Mars, NASA astronauts say they don’t care where they go -- just don't kill them.
Nov 6, 2015 12:13 PM ET // Ian O'Neill
During a Friday spacewalk around the International Space Station's exterior, two NASA astronauts encountered a small ammonia leak and sustained very minor glove damage.
Nov 7, 2015 07:00 AM ET // Elizabeth Howell
It's hard work to be in space for months at a time. Read about the record-holders for America's single spaceflights -- including Scott Kelly, who just recently surpassed the previous mark of 215 days.
Nov 4, 2015 10:58 AM ET // Irene Klotz
Candidates must hold a bachelor’s degree from an accredited institution in engineering, biological science, physical science or mathematics.
Nov 3, 2015 04:00 PM ET // Irene Klotz
After 15 years of a continuous crewed presence, here are just a few of the highs and lows of humanity's most ambitious international endeavor in space.
Nov 1, 2015 07:00 AM ET // Irene Klotz
Though they don’t bear the burden of gravity, astronauts who run aboard the International Space Station can commiserate with participants in the New York City Marathon, though weightlessness presents them with different types of challenges.
Oct 26, 2015 09:00 PM ET // Talal Al-Khatib
Astronauts are known for being in peak physical condition, but everyone gets sick at one point or another.
Oct 22, 2015 11:30 AM ET // Mike Wall,
Humanity's most efficient path to Mars includes a pit stop near the moon, a new study suggests.
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