NASA and SpaceX are making final preparations for the Crew-9 astronaut flight to the ISS next week, but two of the four seats will be empty. Here's why.
A remarkable photo taken by an astronaut aboard the ISS shows SpaceX’s Polaris Dawn Crew Dragon capsule entering Earth’s atmosphere at high speed on Sunday.
SpaceX had been expecting to launch the Starship rocket for the fifth time around now, but the FAA says it needs more time before it can grant a launch license.
Two private astronauts have completed the first-ever commercial spacewalk, marking the first time that civilian astronauts have stepped out into space.
Researchers recently presented a stunning cloud atlas of Mars: a database containing 20 years' worth of images of clouds and storms observed on the red planet.
Two non-professional astronauts are about to conduct the first-ever spacewalk from a Crew Dragon spacecraft and also the first-ever commercial spacewalk.
The historic SpaceX Polaris Dawn mission, which includes the first-ever commercial spacewalk, will launch tonight from NASA’s Kennedy Space Center in Florida.
The troubled Boeing Starliner will depart from the International Space Station (ISS) tonight, traveling back to Earth without its crew. Here's how to watch.
Webb has stumbled across a question mark-shaped galaxy, and the reasons for its uniqueness reveal how the telescope looks at some of the most distant galaxies.
Now that the FAA has grounded the Falcon 9 rocket over safety concerns, it's not clear when the highly anticipated Polaris Dawn mission will be able to launch.
Webb has been causing bafflement in the field of cosmology. But the problem isn't that the universe is broken — it's that early black holes were playing tricks.
The Event Horizon Telescope, which took the first-ever image of a black hole, has made the highest-ever resolution observations taken from the Earth's surface.