astronauts
Chernobyl fungus could shield astronauts from cosmic radiation
A recent study tested how well the fungi species Cladosporium sphaerospermum blocked cosmic radiation aboard the International Space Station.
Long spaceflights change astronauts’ brain structure, new study suggests
The changes in brain structure aren't the only bodily changes caused by zero gravity.
Want to be an astronaut? NASA is hiring!
Here's a look at the space agency's astronaut candidate requirements.
What NASA learned by sending a 77-year-old astronaut into space
When you have the opportunity to take gravity away from the human body, the results are pretty fasninating.
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