Science
Black holes, dark matter, gravitational waves and exoplanets: find out how astronomy is unlocking the secrets of the Universe.
Is time travel really possible? This is what the science says
Can we only travel forward in time, or is the reverse at least theoretically possible?
They say we're made of star stuff, but where does star stuff come from?
How did everything come from the deaths of stars?
We may be about to see an asteroid-mining gold rush. But here's why it could be a very bad idea
We examine the scramble to harvest metals from asteroids – and why we should think twice about it
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Twelve of the weirdest things we've ever seen on Mars. The eerie open door will give you chills!
The strangest sights captured on the Red Planet over the years and what they really are
Our Solar System is trying to kill us. Four catastrophic ways Earth could eventually be obliterated
Our Solar System is constantly changing and evolving. Jane Green looks at the big upheavals and threats that lie in store for our planetary neighbourhood in the aeons ahead
Earth is in the minority. There may be more 'starship' planets wandering space than planets orbiting suns – and they could have life
There are a staggering number of planets wandering the Galaxy, not tied to any star
Want to see a star in close-up? Astronomers have produced one of the most detailed images of Betelgeuse we've ever seen
Observations of Betelgeuse by the ALMA observatory in 2023 reveal a strange, bumpy atmosphere and a persistent hotspot on the star's surface
This week's lunar eclipse proves Earth isn't flat
The shadow of Earth during lunar eclipses proves that Earth isn't a flat disc, but is instead a round, spherical object
Webb Telescope has used a spacetime-warping gravity trick to find new stars never seen before
The James Webb Space Telescope used gravitational lensing to make an incredible discovery in the distant Universe
Scientists looked at the centre of our Galaxy and found some really weird structures
Scientists looking at the centre of our Galaxy have found long, slim filaments made not of dust but gas, and forged by powerful shockwaves
Martian volcanoes hold 60 Olympic swimming pools' worth of water frost on their peaks
Water frost has been discovered atop volcanoes on Mars - including Olympus Mons - in images captured by two orbiting spacecraft.
9 key things to know about this week's blood Moon lunar eclipse
Interesting facts and key things to know about 'Blood Moon' lunar eclipses, including what causes them and how to see them
Scientists have found the fastest star in our Galaxy. And it could tell them how fast our central black hole is spinning
Scientists have discovered the fastest known star in our Galaxy, named S301, which skims close to our central supermassive black hole
This rare meteorite is proof of a lost ancient planet that once roamed our Solar System
Ultra-rare meteorite is a fragment from a protoplanet possibly as big as Mars
Red Rectangle Nebula
The Red Rectangle Nebula is is a proto-planetary nebula formed by a dying star beginning to shed its outer layers into space.
"Exciting and bizarre". Uranus's moon may have once had an ocean beneath its surface
Uranus's moon Miranda had a liquid water ocean. The finding challenges Voyager 2’s data that suggested the Uranus moon was inert.
Nearby planet reeks of rotten eggs and rains glass, but could tell astronomers a great deal about life beyond Earth
Exoplanet's smell is from hydrogen sulphide, a vital ingredient for building the molecules of life.
Our Galaxy swallowed another galaxy shortly after the Big Bang. And scientists just found the smoking gun
The discovery of the Low-energy-Kraken-Heracles merger 11.8 billion years ago reveals how our young Galaxy was shaped
Astronomers found a 'mega Earth' that shouldn't exist. This alien world is breaking the rules of planet building
GJ 523b is a mega Earth exoplanet located 87 lightyears from Earth that has remained a dense, rocky world despite being so enormous.
Stargazers see bright clouds – astrophysicists see an impending collision. These are the two nearby galaxies you've probably never heard of
A beginner's guide to the Magellanic Clouds and their impending collision with our own Galaxy
Our Galaxy is set to collide with its neighbour. It's called the Andromeda-Milky Way collision – and here's what will happen
Will our Milky Way galaxy really collide with the Andromeda Galaxy? When will it happen, and how does our Galaxy compare to the Andromeda Galaxy?
These are the closest black holes to Earth – and there could be many more. Should we be worried?
The closest black holes to Earth, how we know they're there and how astronomers go about searching for black holes
Black holes explained for beginners
What is a black hole made of? Is there anything on the other side? How do we know they exist?
Where is the nearest black hole to Earth?
Where is the nearest black hole in our galaxy? A study reveals the massive object could be hiding among the stars of Monoceros.
