Solar System

What will happen when our sun starts dying? These 'stellar archaeologists' may have found a clue

By Robert Lea published 23 April 26

Acting as stellar archaeologists, scientists have found fossilized magnetism on long-dead white dwarf stars, which may help to explain how stars evolve.

Ancient volcanic ash seen blowing across Mars in new spacecraft images

By Keith Cooper published 23 April 26

New images from the Mars Express spacecraft show ancient volcanic ash spreading across the Red Planet.

Interstellar invader comet 3I/ATLAS formed in a world much colder than the solar system

By Robert Lea published 23 April 26

"Each interstellar comet brings a little bit of its history, its fossils, from elsewhere."

Japan's audacious sample-return mission to the Mars moon Phobos has made it to the launch pad

By Andrew Jones published 23 April 26

The complex MMX mission aims to shed light on the origins of Mars' two tiny moons, Phobos and Deimos, bringing Phobos material back to Earth in 2031.

Happy Earth Day! Celebrate with these amazing photos of our planet from space, from Apollo 8 to Artemis 2

By Chelsea Gohd published 22 April 26

This Earth Day, we reflect on our home planet and look at Earth from space through history.

Celebrate Earth Day with this Artemis 2 shot | Space photo of the day for April 22, 2026

By Chelsea Gohd published 22 April 26

Celebrating Earth Day with an image of Earth captured by NASA's Artemis 2 mission around the moon.

Mysterious rings around Uranus point to hidden moons orbiting the ice giant

By Keith Cooper published 22 April 26

The two most puzzling rings around Uranus are gradually giving up their secrets, only to deepen the mystery of the Uranian system.

NASA's Curiosity rover finds building blocks of life on Mars. Scientists aren't sure how they got there

By Leonard David published 21 April 26

NASA's Curiosity rover has found a diverse mix of organic molecules on Mars, including chemicals considered building blocks for the origin of life on Earth.

Scientists found a 'bathtub ring' on Mars. Could it be evidence of an ancient Red Planet ocean?

By Charles Q. Choi published 20 April 26

A huge geological structure on Mars resembling a bathtub ring may be evidence of an ocean that once covered a third of the Red Planet.