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NASA's Kepler space telescope was first launched in 2009 to survey parts of the Milky Way galaxy, searching for Earth-size and smaller planets.
‘Holy shite, what am I seeing out here?’: 7 astronauts reveal what it really feels like to live in space
Fewer than 540 people have ever left this planet. We asked seven astronauts what the experience of being away from Earth was like on a personal level.
NASA astronaut Scott Kelly thinks we should never have all humans on Earth at the same time ever again
NASA astronaut Scott Kelly lived on the International Space Station during his one-year mission. Before the ISS comes to an end, he hopes for a replacement.
Astronaut Scott Kelly spent nearly a year in space. To study the effects on the human body, NASA compared him to his identical twin brother, Mark Kelly.
Astronaut Scott Kelly shared some of the strangest, most interesting details about floating around the International Space Station for a year.
Scientists discovered tightly packed clusters of cyclones on Jupiter's poles that seem to defy the laws of physics.
NASA’s new planetary protection officer says she doesn’t want ‘another red Roadster up there in orbit’
NASA Planetary Protection Officer Lisa Pratt is worried about Elon Musk having sent a Roadster into orbit.
NASA just fired an old space shuttle engine at ‘113% thrust’ — and plans to use it on a new mega-rocket
The space agency is modifying old space shuttle engines for use on SLS, a 321-foot-tall mega-rocket that might send astronauts to the moon and Mars.
NASA astronaut Scott Kelly on his poor grades in school, his biggest fear when he’s away from Earth, and how SpaceX fits into the future of inte...
Scott Kelly, retired NASA astronaut, talks about growing up with his identical twin and fellow former astronaut Mark, and his record-breaking year-long mission.
NASA astronaut Scott Kelly explains how seeing planet Earth from space changed his perspective on life
Retired NASA astronaut Scott Kelly said that studying the entirety of Earth aboard the International Space Station made him a more empathetic person.