Space Exploration

NASA has announced the retirement of Associate Administrator Jim Free, the agency's chief operating officer for more than 18,000 employees across the United States.

A SpaceX Falcon 9 rocket launched 21 more of the company's Starlink internet satellites to orbit from Florida's Space Coast on Saturday (Feb. 8).

Such a dramatic cut to a flagship space telescope still in its prime will be felt across the mission's entire operations, affecting science.

The International Space Station "has served its purpose" and should be deorbited "as soon as possible," SpaceX chief and close Trump adviser Elon Musk said today (Feb. 20).

Rippled textures in a shallow lake bed on Mars indicate that ice-free liquid water once pooled here.

Elon Musk and President Trump continue to advance the narrative that NASA astronauts from Boeing's Starliner mission were "abandoned" in space.

If we're looking for life as we don't know it, the best solvent out there may be concentrated sulfuric acid — the stuff that's floating around in the clouds of Venus.

A SpaceX rocket stage fell to Earth early Wednesday morning (Feb. 19), blazing a trail of fire through European skies.

The Hubble Space Telescope captured the ​​colorful, wispy clouds near the Tarantula Nebula, one of the most luminous and active star-forming regions in our galactic backyard.

Blue Origin just revealed the identities of five of the six crewmembers for NS-30, its next suborbital space tourism mission. The company has not yet announced a launch date.