NASA’s Neil Gehrels Swift Observatory is in a race against time. For more than 21 years the Earth-orbiting telescope has surveyed the sky for gamma-ray bursts—the most powerful and luminous ...

Get to know NASA's Artemis 2 moon mission with Space.com's exclusive four-part video series Inside Artemis II debuting March 25-March 31.

Now that Butch Wilmore and Suni Williams are home, ending a 9-month spaceflight, questions remain about the troubled ...

NASA has offered a sneak peek inside its Mars simulation habitat where four volunteers have now spent 150 days isolated from the outside world. By living within the confines of the 1,700-square-foot ...

Expedition 74 astronauts conducted science experiments, spacesuit maintenance, and spacecraft operations while the ...

"It turns out that they're really cracked too, and that was the missing piece of the puzzle." ...

Explore the Soyuz Spacecraft, a staple of space travel since the 1960s, and discover how it transports cosmonauts to the ...

When fire breaks out in the low-gravity, high-stakes conditions inside spacecraft or space stations, it behaves very differently than back here on Earth. So, as humans aim to set foot on Mars in the ...

When fire breaks out in the low-gravity, high-stakes conditions inside spacecraft or space stations, it behaves very differently than back here on Earth.