Astronauts Rick Mastracchio and Michael Hopkins are installing a new ammonia cooling pump.
Two space station astronauts have floated outside on Christmas Eve in hopes of wrapping up urgent cooling system repairs.
Astronauts removed an old space station pump Saturday, sailing through the first of a series of urgent repair spacewalks to revive a crippled cooling line.
Space may be vast, but it isn’t that lonely. A new study finds that the Milky Way is teeming with billions of planets like ours, circling stars just like our sun.
Virginia and Alaska are teaming up to make the most of their commercial space operations.
“Suited for Space,” opening Friday at the Smithsonian’s National Air and Space Museum, highlights the creativity behind the suits that allowed humans to explore the moon and aspire to fly farther from Earth.
Readings by NASA’s Voyager 1 spacecraft confirm it’s in unfamiliar territory, but it’s still inside our solar system.
In an online video, astronaut Chris Hadfield sings the David Bowie song “Space Oddity” while floating around in zero gravity aboard the International Space Station.
The International Space Station regained contact with NASA controllers in Houston after nearly three hours of accidental quiet, the space agency says.
The universe is filled with stuff, and a lot of it is far away, very far away. Scientists have a new record holder for the furthest galaxy from Earth.