Astronaut
Latest about astronaut
An Astronaut Got a Blood Clot in Space. Here's How Doctors on Earth Fixed It.
By Leonard David published
An unidentified astronaut aboard the International Space Station had a deep vein thrombosis — or blood clot — in the jugular vein of their neck, according to a new case study.
The 1st Human on Mars May Be a Woman, NASA Chief Says
By Hanneke Weitering published
It won't be long before we see the first woman on Mars, and she just might beat the first man there, NASA Administrator Jim Bridenstine said Friday (Oct. 18).
Space Radiation Doesn't Seem to Be Causing Astronauts to Die from Cancer, Study Finds
By Rachael Rettner published
That may be true for the short missions astronauts have gone on so far. But Mars will be a different story.
A SpaceX Crew Dragon Safety Test Went Very Wrong. Here's Why That Matters
By Rafi Letzter published
SpaceX tested the escape system on its Crew Dragon capsule. Smoke from the failure was visible for miles.
Astronauts Spent 6 Nights in a Pitch-Black Cave, and Emerged with a Brand-New Species of Crustacean
By Brandon Specktor published
An international team of astronauts has discovered new life (in a cave below Italy).
Meet Ripley, SpaceX's Dummy Astronaut Riding on Crew Dragon Test Flight
By Meghan Bartels published
SpaceX's famous "Starman" dummy onboard the inaugural Falcon Heavy launch is about to have some competition — from a new dummy, named Ripley, strapped into the company's first Crew Dragon capsule.
No, Bacteria Aren't Mutating into Superbugs on the International Space Station
By Rafi Letzter published
Bacteria on the International Space Station are evolving and changing in the strange orbital environment. But they don't seem to be any more dangerous to humans.
Delay of SpaceX Launch May Mean 36,000 Wormy Passengers Are Too Old for Their Planned Experiments
By Yasemin Saplakoglu published
Here's what those wriggling worms are expected to do in space ... and it's not to scare aliens.
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