
Most normal matter in the universe isn't found in planets, stars or galaxies – an astronomer explains where it's distributed
While space is often referred to as a vacuum, it isn't completely empty.

By Jamie Carter published
From the moon and Jupiter to famous nebulae and galaxies, here’s your beginner-friendly guide to what to point your brand-new telescope at.
By Hanneke Weitering, Chelsea Gohd last updated
On Dec. 26, 1974, Salyut 4, a Soviet space station, launched into orbit around Earth.

By Kenna Hughes-Castleberry published
It marks the first time newly commissioned Space Force Guardians have graduated Officer Training School (OTS) wearing this uniform.

By Andrew Jones published
China overcomes human spaceflight emergency and makes leaps with lunar hardware tests

By Tariq Malik, Daisy Dobrijevic last updated
Reference See what moon phase it is tonight and find out when you can see the rest of the moon phases for 2025.

By Twila A. Moon, Rick Thoman, Matthew L. Druckenmiller published
Overall, the Arctic is warming more than twice as fast as the Earth as a whole.

The latest aurora forecast for tonight help you make sure you're in the right place at the right time to see the northern lights.

Follow Space.com's rocket launch blog for the latest on when the next rocket launch will be and how to follow it live.

Find out what you can see in the night sky for tonight, from planets and stars to dazzling meteor showers.

Witness live views of Earth from the International Space Station as it orbits the planet. Space streaming company Sen is broadcasting 24/7 from the ISS in beautiful 4K HD.

NASA astronaut Sally Ride became the first American woman in space aboard the space shuttle Challenger.

See what moon phase it is tonight and find out when you can see the rest of the moon phases for 2025.

Keep up with all the rocket launches, astronomical events and mission milestones for 2025 with our space calendar.

By Leonard David published
"Science doesn't always go as planned. In any case, there's a lot of work to be done."

By Mojtaba Akhavan-Tafti published
As a space scientist, I predict that the company will soon have to reckon with a growing problem: space debris.
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