Asteroid Apophis to sweep close 3 years from tomorrow

Three years from now, on April 13, 2029, the asteroid Apophis will zoom safely past the Earth. This much-anticipated event is a "must-see" for all.

Why do Jupiter’s large moons outnumber Saturn’s?

Jupiter's large moons - Ganymede, Callisto, Io and Europa - number four. But Saturn has just one large moon, Titan. Why? It may be the planets' magnetic fields.

Supermassive black holes could merge in 100 years

For the first time, astronomers have direct evidence of a close pair of supermassive black holes in a galaxy. These black holes could merge in 100 years.

What is the Earth’s most distant spacecraft?

The most distant spacecraft from Earth is Voyager 1. Launched in 1977, Voyager 1 is a few billion miles farther from Earth than its sibling, Voyager 2.

There’s less ice in moon’s shadows than 1st thought

Ice in moon’s shadows is scarce, NASA’s ShadowCam finds, with only small, scattered deposits instead of the abundant ice once expected.

Watch sungrazing Comet MAPS break up near the sun

Sungrazing comet C/2026 A1 (MAPS) apparently didn't survive its close encounter with the sun. Watch the apparent breakup in spacecraft images!

Walking robots on Mars could speed up life search

Researchers in Europe are testing a prototype for walking robots on Mars or the moon. Robots like this would be faster and more autonomous than current rovers.

11,000 new asteroids! Astronomers call it ‘tip of iceberg’

Rubin Observatory’s early data revealed more than 11,000 new asteroids in the asteroid belt, along with some 380 objects beyond Neptune.

5 insights on interstellar comet 3I/ATLAS from ESA’s Juice mission

Juice reveals Comet 3I/ATLAS is highly active, with vast gas and dust clouds. It behaves like solar system comets and offers clues to its interstellar origins.

Tiny comet shows first-ever spin reversal

For the first time, Hubble observations reveal that a tiny comet has stopped spinning in one direction and has reversed to spin in the opposite direction.