NASA and SpaceX are accelerating plans to return astronauts Sunita Williams and Butch Wilmore to Earth, targeting mid-March.

Timeline, totals, travel impacts ...

Astronomers have identified an unprecedented cosmic titan—a vast superstructure of galaxies stretching 1.3 billion ...

With a length of 428 megaparsecs, or around 1.39 billion light-years, the superstructure is the biggest ever spotted.

Euclid, a space telescope on a mission to uncover the secrets of dark matter and dark energy, has already made a stunning discovery: a perfectly formed Einstein ring hidden in a well-known galaxy.

NASA moved up the launch of Crew-10 to March 12 to return the Starliner astronauts home sooner. Crew-10 will now launch on Crew Dragon Endurance, which was originally assigned to the Axiom 4 mission.

NASA has decided to shuffle around some SpaceX Dragon capsules in order to launch its Crew-10 mission to the International ...

Researchers say they've discovered the largest known object in the universe, a galactic superstructure called Quipu.

SpaceX and NASA, under pressure to get a pair of Boeing Starliner astronauts home sooner than later, announced Tuesday they have shifted plans for the next mission to the International Space Station.

NASA on Tuesday swapped out the astronaut capsule it plans to use for an upcoming routine flight to the International Space ...