She set sail as a research vessel, shipped out as postage stamp and stood tall as a monument. Now, America's first woman in space is set to return to orbit as the namesake of a station cargo capsule.

An Atlas V rocket topped with the SES-20 and SES-21 spacecraft is scheduled to lift off Tuesday at 5:36 p.m. EDT (2136 GMT) from Cape Canaveral Space Force Station in Florida. Watch it live here.

Earth's delicate balance of land and water might be a cosmic rarity, with a new model suggesting that most planets are landlocked desert worlds.

The underground ocean of Saturn's moon Enceladus may contain significant amounts of phosphorus, which is vital for life as we know it.

The knowledge that we're not alone in the universe could have far-reaching effects on our view of ourselves and our place in the universe. But it's tough to get more specific than that.

Buying Guide Looking for the best telescopes available in 2022? We've listed them here in one handy guide for you.

Space.com's editors present a reading list for space and sci-fi lovers, as well as children who are interested in astronomy and spaceflight.

On today's This Week in Space, space venture capitalist Steve Jurvetson joins us to discuss SpaceX, investing in NewSpace and the future.

Fingers crossed that "Andor" on Disney Plus will make other major studios realize that clever is cool, be it "Star Wars" or not.