Mark and Scott Kelly are identical twin brothers who are both NASA astronauts. In 2015, Scott Kelly was launched on a record 340 day mission to the International Space Station.
In 2018, NASA launched the transiting exoplanet survey satellite, or TESS, in order to study planets that circle other stars.
NASA is studying the impact of traveling to and living in space on the human body.
The first crop harvested from the International Space Station's garden was romaine lettuce.
As of three point eight billion years ago, Mars had already lost much of its atmosphere.
Trying to figure out how to experience the 2017 solar eclipse? We've got options for you.
Total solar eclipses are when the sun's corona are most easily observed.
Mars-bound astronauts will face many dangers including extended exposure to galactic radiation, which has been shown to cause brain damage.
NASA has designed a new grappling tool based on geckos' foot grips.