Former NASA astronaut William "Bill" Thornton, who used his own inventions to measure and combat the ill-effects of microgravity while on board two space shuttle missions, has died at the age of 91.

The glorious new image captures the 96-mile-wide Gale Crater and part of Mount Sharp, its central mountain.

The newfound planet likely can't support life.

This liquid fuel engine is a beast.

What's up with all those volcanoes on Io, anyway?

The US space agency (Nasa) is about to put its latest rover, Perseverance, on Mars. But we shouldn't forget that the existing robot, Curiosity, is still there and working well following its landing in equatorial Gale Crater back in 2012. Curiosity celebrates 3,000 Martian days, or Sols, on the surface of the Red Planet on Tuesday. The Mission Science Team has collected together a series of pictures that record some of the rover's major achievements.

We can make rocket fuel on Mars in one step! Check out how methane will move future space missions.

The Big Bang theory is a cosmological model describing how our current, observable universe came to be. But there is still much to learn about the concept, particularly when it comes to what occurred in those early microseconds after the big bang itself. What happened in that split second when our universe appeared? NASA wants to find out. To do so, the space agency has designed a space telescope that will be able to probe the universe for evidence of those earliest moments.

Preserving the historic sites where humans first landed on the moon is now not only a good idea, it is also the law.

When the 60-year-old Arecibo Observatory collapsed in 2020, the crash didn’t just take down one of the world's preeminent radio telescopes, it also dealt a massive blow to the future of radio astronomy. Arecibo may have been old, but it also had unique capabilities that made it ideal for studying things like gravitational waves, as well as mapping the surfaces of asteroids as they slip by Earth.

It's called SPHEREx and it's one step closer to launch.

Scientists involved in a project in search of alien life are now investigating a mysterious radio wave signal that appears to have come from Proxima Centauri, the closest star

Despite the coronavirus pandemic, 2020 has been a surprisingly busy year for space – and next year looks to be equally enthralling.

This is some real sci-fi stuff.

An enigmatic radio signal from the direction of Proxima Centauri, the Sun’s nearest stellar neighbor, has set the internet ablaze with rumor and speculation. It could turn out to be the real deal — a calling card from another civilization. More likely, it’s much ado about nothing.

Space junk is becoming a growing concern amongst experts, who say it poses an environmental hazard — especially if it burns up on re-entry.

After decades of nostalgia for the Apollo program, it’s time for NASA to send astronauts on a radical new adventure, worthy of America’s pioneering spirit

50 years after the first spacecraft touched down on our super hot neighbor (and promptly died), NASA has a plan for a tougher mechanical lander.

The International Space Station is now sporting a shiny new piece of hardware. On Monday (Dec. 21), the first commercial airlock ever sent to the International Space Station (ISS) was attached to its exterior. The new structure is a bell-shaped airlock that is designed to transfer payloads and other materials from inside the station out into the vacuum of space.

There was no clearer set of contrasts between how SpaceX and NASA approach launch vehicle development than the dueling tests the two performed in early December of Starship and Space Launch System, respectively. It was hard to miss the Dec. 9 test flight of SpaceX’s Starship SN8 prototype, the first time the vehicle flew more than a couple hundred meters off the pad. It soared into the Texas sky propelled by its three Raptor engines...