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What it's really like to be a NASA astronaut
One of NASA's 47 active astronauts tells Business Insider what it's like being in outer space.
NASA's Scott Kelly Grew 2 Inches: What a Year in Space Does to the Body
One of the main goals of astronaut Scott Kelly's yearlong mission was to study how well humans can endure on a long-duration spaceflight.
American astronaut casts the ultimate absentee ballot from space
NASA astronaut Shane Kimbrough cast an absentee ballot from the International Space Station
Here's What an Astronaut Thinks of Elon Musk's Plan to Colonize Mars
Retired NASA astronaut Tom Jones has some opinions about Musk's grand vision.
5 Myths About Becoming an Astronaut
Have you ever wondered if you have what it takes to become a NASA Astronaut? The term “astronaut” derives from the Greek word meaning “space sailor,” and refers to all who have been launched as crew...
How NASA Broke The Gender Barrier In STEM
For the first time, half of the astronaut class is women, and now NASA is offering new opportunities for female tech entrepreneurs.
Five Fast Facts about Astronaut Mae Jemison
Why Did NASA Still Use Pure Oxygen After the Apollo 1 Fire?
After pure oxygen killed three astronauts, why didn't NASA change the Apollo cabin environment?
The outer limits of medicine: How doctors treated an astronaut's blood clot in space
When a NASA astronaut at the International Space Station developed a blood clot, doctors took an innovative yet old-school approach to treatment.
How To Become An Astronaut
Do you have the right stuff? Becoming an astronaut doesn't just happen overnight. It takes many years of education and experience to meet the basic qualifications.
Astronaut Chris Hadfield Debunks Space Myths
Retired astronaut Chris Hadfield helps debunk (and confirm!) some common myths about space. Is there any sound in space? Does space smell like burnt steak? I...
Why Did the Mercury 13 Astronauts Never Fly in Space?
Thirteen women qualified as astronauts in 1961. So why did they never fly in space?
10 incredible space photos from astronaut Don Pettit's new book
Here's how an American astronaut cast his vote from space
The votes of astronauts are particularly important because the two candidates have very different views on the future of America’s space program.
Astronauts explain what it’s like to be ‘shot off the planet’
To mark the Crew Dragon launch, PopSci spoke with two Shuttle-era astronauts—one who flew on that initial 1981 mission, and another who flew on the final 2011 tour.
How NASA Will Choose Astronauts for Its Incredible Journey to Mars
When the agency put out its latest application call, it specified that the lucky few might fly in Orion, a deep-space vessel meant to make the Journey to Mars.
Here's what NASA saw when it landed on Saturn's largest moon
How NASA Got Apollo Astronauts Through the Dangerous Van Allen Belts
Scientists have finally figured out why astronauts lose their vision while in space
According to a new study, the eyesight of astronauts is being harmed by changes in the fluid that surrounds the brain and spinal cord.