Space.com

Scientists have revealed key properties of radioactive promethium, a rare earth element with poorly understood applications, using a groundbreaking new method.

NASA has postponed a scheduled EVA today (June 13), as the two astronauts slated for the spacewalk were already putting on their suits.

The Gum 3 nebula, which resembles a swimming koi fish, is captured in a stunning new photo from the European Southern Observatory's VLT Survey Telescope.

A powerful solar storm in May 2024 created auroras on Mars and provided scientists with crucial information that could aid future crewed missions to the Red Planet.

It sounded like a nightmare scenario: An astronaut commander on the International Space Station in distress and a flight surgeon on Earth stuck in traffic. But it was all a simulation.

Who's the man who turns the Doctor's head in Regency England in "Doctor Who" episode 6 "Rogue"?

Two NASA astronauts will venture outside the International Space Station today (June 13), and you can watch the action live.

Watch a new clip from director Eli Roth's upcoming live-action video game adaptation, "Borderlands."

The third episode of "The Acolyte" is a long flashback that adds more layers to both the story being told and the Star Wars universe as a whole.

By looking at Earth as an exoplanet, astronomers hope to search for similar fingerprints coming from planets around other stars, which would be a potential sign of intelligent life.

SpaceX is scheduled to launch 22 more of its Starlink broadband satellites to orbit from Florida's Space Coast on Thursday (June 13).

Stoke Space has announced the first successful hot-fire engine test for its Nova launch vehicle, which the company calls the "most robust, fully and rapidly reusable medium-lift rocket in the world."

Alaska's melting permafrost is dumping toxic metals into the state's rivers, turning them bright orange and making the water highly acidic. The contaminated rivers are so vibrant they can be seen from space, and the problem is likely to get much worse in the future.

A gorgeous new photo from the Hubble Space Telescope, which is down to two functioning gyroscopes, captures the barred spiral galaxy NGC 3059.

Ed Stone, who for 50 years served as the project scientist for NASA's iconic Voyager mission, died June 9 at the age of 88.

In an exclusive interview with Space.com, Lego senior design manager Dan Meehan discusses the role 'space storytellers' have had on shaping the company's new space-themed sets.

The nova caused HM Sge to brighten in our night sky by 250 times.

Starliner's two astronauts continue to put the capsule through a series of checks, while ground teams analyze helium leaks and other issues.

XRISM could change the way we see the X-ray universe, but a jammed door presents a mighty challenge. With the door closed, low energy X-rays are impossible to detect. But trying to open the door could put the rest of the mission at risk.

Starfield might have disappointed some at launch, but in typical Bethesda fashion, it's continuing to expand and giving more power to the players.