Jupiter, Saturn about to appear closer in sky than they have for 800 years, aligning as 'double planet'

On December 21, Jupiter and Saturn will be the closest they've been in the sky since the...

An asteroid flew within 3,000km of Earth — the closest pass ever — and we didn't see it coming

The asteroid, known as 2020 GQ or ZTF0DxQ, flew so near to Earth that it's now the...

NASA's Hubble space telescope beamed back a striking photo of a 'fluffy' galaxy with ghostly centre

The photo from NASA's Hubble Space Telescope shows how newborn stars have used up all the...

New images of Jupiter reveal holes in the Great Red Spot

Astronomers created a "weather satellite" by linking a Jupiter-orbiting spacecraft,...

New photos and videos of the sun's surface show cells of boiling plasma that are half the size of SA

Such images could help forecast dangerous space weather.

A second planet might orbit the closest star to the sun, and astronomers think it's a super-Earth

Astronomers think the planet, called Proxima c, is a super-Earth that formed far from the...

A new space telescope is about to take an unprecedented look at alien planets circling distant stars. Watch it launch live.

CHEOPS will attempt to study the atmospheres of exoplanets. It launches into Earth orbit...

A handful of new telescopes are about to transform the hunt for alien life and our understanding of the universe itself

NASA and other space agencies are building telescopes that will study dark matter,...