Blood clots are life-threatening, as they can cause heart attacks or strokes and lead to huge health related costs on Earth.
Astronauts caught a stunning natural light show this weekend from a comet that has been dazzling skywatchers on Earth as well.
A Rocket Lab Electron booster carrying seven satellites failed to reach orbit during a Fourth of July launch Saturday.
NASA's last space shuttle mockup still on its astronaut training room floor has landed a new educational mission in Oklahoma.
The coronavirus pandemic has slowed testing of NASA's next megarocket, but the monthslong process is resuming and has checked off a key milestone: powering up the core stage.
Cubesats have revolutionized orbital science, and a rover counterpart may soon do the same for surface science, beginning on the moon.
Two astronauts completed the second-to-last set of battery replacements outside of the International Space Station, advancing a multi-year project to upgrade the power system for the orbiting lab.
Two NASA astronauts will venture outside the International Space Station for a spacewalk today (July 1), and you can watch it live online.
NASA has delayed the launch of its Mars rover Perseverance again, this time to no earlier than July 30, due to rocket preparation delays.
The folks at Firefly Aerospace took a brief break from rocket development recently to fire up a rocket engine to celebrate a co-founder's birthday.
A SpaceX Falcon 9 rocket launched an advanced GPS satellite for the U.S. Space Force Tuesday (June 30) then nailed a booster landing at sea.
SpaceX is gearing up to launch a Falcon 9 rocket today, June 30, to deliver an upgraded global positioning satellite (GPS) into orbit for the U.S. Space Force and you can watch it live online.
Starliner's chutes performed well during a drop test over New Mexico's White Sands Space Harbor on June 21 that was designed to simulate an abort shortly after launch.
During last Friday's spacewalk (June 29), NASA astronauts got a "pretty awesome" view of SpaceX's Crew Dragon vehicle docked with the International Space Station.
A tiny Chinese satellite in lunar orbit captured incredible images of a total solar eclipse over South America last year, thanks to commands from radio enthusiasts.
Since the launch of Sputnik 1 in 1957, the lower orbit around the Earth has become an increasingly congested environment.
One is blinding white and the other a dull, dusty red. But both are cold, barren worlds, difficult to reach and full of tantalizing scientific mysteries.