Dwindling power and problematic communications, but the spacecraft just keeps on going

A new study suggests Uranus' moon Miranda may harbor a water ocean beneath its surface, a finding that would challenge many assumptions about the moon's history and composition and could put it in the company of the few select worlds in our solar system with potentially life-sustaining environments.

The Long March 9 super heavy-lift rocket made an appearance at a major airshow recently—and looks awfully familiar.

Due to chaos, it was long thought that planets couldn't stably orbit systems containing three stars. GW Orionis is the first counterexample.

May explain how the Universe built supermassive black holes so quickly after the Big Bang.

Swiss students made history with Europe's first rocket hop test, but a slice of Gruyère almost turned it into a disaster.

NASA lost contact with the interstellar Voyager 1 spacecraft for nearly a week after a technical glitch shut off the probe's main transmitter. Using Voyager's weaker backup transmitter, engineers are assessing the problem from 15 billion miles away.

The icy moon Miranda is the latest satellite in our solar system to spark hope in the search for life beyond Earth.

“I’m not going to share right now. When it comes out, it’ll all come out together.”…

The two CubeSat passengers aboard ESA's Hera mission for planetary defense have exchanged their first signals with Earth, confirming their nominal status. The pair were switched on to check out all their systems, marking the first operation of ESA CubeSats in deep space.

NASA's Nancy Grace Roman Space Telescope team has successfully completed integration of the Roman Coronagraph Instrument onto Roman's Instrument Carrier, a piece of infrastructure that will hold the mission's instruments, which will be integrated onto the larger spacecraft at a later date. The Roman...

China has a space station — it’s called Tiangong, the first module was launched in 2021, and it’s all going quite swimmingly, thank you very much. That’s essentially what we…

A NASA astronaut who returned to Earth on the Crew-8 mission is hospitalized in stable condition after experiencing an unspecified medical issue after splashdown.

Boeing is trying to turn things around.

"It's difficult to explain how these quasars could have grown so big if they appear to have nothing to feed from."

A satellite belonging to multinational service provider Intelsat mysteriously broke up in geostationary orbit over the weekend.

The sight of a fireball streaking across the sky brings wonder and excitement to children and adults alike. It's a reminder that Earth is part of a much larger and incredibly dynamic system.

Researchers think meltwater beneath Martian ice could support microbial life.

SpaceX Mars Colonization Vehicle will be something else

Long-term research program includes building Moon bases, finding habitable exoplanets, and probing 'space-time ripples'

The phenomenon, known as an anti-tail, is an optical illusion caused by the Earth's position in the comet's orbital plane.

A study from the University of Ottawa suggests we might not need dark matter or dark energy to explain the workings of the universe.

@SpaceX: Mechazilla has caught the Super Heavy booster!

A massive NASA spacecraft is ready to set sail for Jupiter and its moon Europa. The craft named Europa Clipper will peer beneath the moon's icy crust and determine whether conditions there could support life.

Surely, exoplanets have moons, too.

The first moving images of a black hole could reveal swirls of plasma and collapsing stars, deepening our understanding of the universe.