Science
Black holes, dark matter, gravitational waves and exoplanets: find out how astronomy is unlocking the secrets of the Universe.
Three supermoons are visible in 2025. Find out when the next one is and how to see it.
What does the term 'supermoon' mean, when is the next one and are they really bigger than a regular full Moon?
BepiColombo 6th Mercury flyby images
What causes a rainbow?
What causes a colourful rainbow to appear in the sky after rain?
Potato radius
Red rainbows exist, but they're extremely rare. Here's the science and how to see one for yourself
Snow on Mars
Complete guide to the phases of the Moon
A guide to the phases of the Moon, and why its appearance changes night after night from crescent to gibbous and back again.
Webb Telescope spots 138 tiny new asteroids
Happy New Year space fans! Here are the biggest spaceflight and stargazing events in 2025
The chances of alien life just got slimmer, according to new study looking at mysterious dark energy
Astronomers are facing a deluge of data from new missions. A.I. could help them decide what to look at
This steamy sauna planet is just 100 lightyears away, and astronomers still can't work out how it formed
Is there really water on Mars? If scientists keep discovering water on the Red Planet, where is it all?
"Exciting and bizarre". Uranus's moon may have once had an ocean beneath its surface
Alien life may be able to create its own habitable haven on planets orbiting distant stars
What if a hot Jupiter existed in our Solar System?
Imagine if the planet Jupiter orbited much closer to the Sun. What effect would a so-called hot Jupiter have on our Solar System?
How big is the Solar System?
The scale of our Solar System is gigantic. There’s more to our cosmic neighbourhood than eight planets and an asteroid belt.
How do we measure distance in space?
How do we know how far away objects are in space, and what units of measurements are used in astronomy for determining these distances?
D9 binary stars near black hole Sagittarius A*
Galaxy NGC 5084 black hole is tipped on its side
What was the Christmas Star of Bethlehem?
What was the star of Bethlehem? Did it really exist? And could there be an astronomical explanation for the story of the star that guided the Magi?