
Before trips to Mars, we need better protection from cosmic rays
Outside Earth's protection, space travellers will be routinely exposed.

By Jamie Carter published
From a crescent moon and a 'Christmas Star' to deep sky delights, the wonders of the holiday night sky are yours to explore.

By Hanneke Weitering, Chelsea Gohd last updated
On Dec. 23, 1672, Italian astronomer Giovanni Cassini discovered Rhea, Saturn's second-largest moon.

By Kenna Hughes-Castleberry published
The "America 250" logo commemorates the upcoming 250th anniversary of the signing of the Declaration of Independence.

By Mike Wall published
The South Korean startup Innospace failed during its first orbital launch attempt, which sent five satellites aloft on Dec. 22 from Brazil.

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 Kenna Hughes-Castleberry published
Test your cosmic eye: can you match these dazzling nebula images to their names?

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 Charles Q. Choi published
"We're not certain if having widespread liquid pockets instead of a global ocean makes Titan more or less habitable."

By Grace Dean published
Show the space enthusiast in your life that you love them to the moon and back with the best last-minute holiday gifts available.
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