Science
Black holes, dark matter, gravitational waves and exoplanets: find out how astronomy is unlocking the secrets of the Universe.
On foot, by car, by plane and by space station! How long does it take to travel around the world?
How long does it take to travel around the world on foot, by car, by plane and by space station?
How many galaxies are there in the universe?
Do astronomers know how many galaxies exist? How many can we see in the observable Universe?
T Coronae Borealis nova event guide and how to prepare
The Giant Magellan Telescope will be the largest optical telescope in the world, tasked with exploring the cosmos
This galaxy shouldn't it exist. But it does, and astronomers can see it in the very early Universe
Galaxy JWST 7329 is challenging astronomers’ understanding of how these enormous stellar structures grow in the early Universe.
This is what would happen if you fell into a black hole
If you fell into a black hole, could you survive? What would happen, and what would you see?
Could a change in the strength of gravity have been the real reason the dinosaurs went extinct?
Maybe the asteroid that killed the dinosaurs wasn’t the real culprit. Could gravity be to blame?
This is how astronomers detect hidden binary stars, when two stars orbit one another
How different types of binary star systems are detected by astronomers.
Hubble Space Telescope captures new Jupiter images showing stormy atmosphere and volcanic moon
Binary stars and double stars explained, and five of the best to observe through your telescope
The sight of two stars partnered together is stunning, especially when they display vibrant colours.
Why extra-terrestrial life might not seem so 'alien' after all
Could we ever conceive of what an alien species might be like? It may not be so hard, since there are universal laws that constrain evolution.
How could we communicate with aliens, if we ever find them?
METI International's Douglas Vakoch looks into how humanity could reach out and contact other worlds.
Why does it take light from galaxies so long to reach us if they used to be much closer?
Could the Universe have expanded at a speed faster than light?
Why are there two high tides and two low tides every day?
The Moon plays a large part in Earth's tides, but why are there two high tides in a lunar day?
Why do some galaxies have more supernovae than others?
While the Milky Way hasn’t had a supernova in 400 years, other galaxies are bursting with them. Why is this, and why are supernovae important?
Webb Telescope finds ingredients for life around young stars that resemble our early Solar System
12 facts about the April 8 total solar eclipse you need to know
Could dark matter be roving cosmic gas clouds? Flickering quasars revive old theory of cosmic mystery
The blink of distant quasars may hint at one of the cosmos’s big mysteries.
Webb Telescope captures stunning image of a star-forming region within the Triangulum Galaxy
A new view of a star-forming region within a nearby galaxy.
What would the Andromeda Galaxy look like if we went there? And how would our Solar System appear?
What would Earth and the Sun look like when viewed from the Andromeda Galaxy? And what would the galaxy look like if we could travel there?
Super-Earths and mini-Neptunes are the most common planets. So why does our Solar System have none?
The most common planets in our Galaxy are super-Earths and mini-Neptunes, yet strangely our Solar System has none.
Love to see the night sky on Mars? This is what it would be like to stargaze on the Red Planet
Ever wondered what it would be like to see the Sun or the stars from Mars? Read our guide to find out what sights await future Martian astronomers.
The Great Wall is full of galaxies 15 million lightyears thick, stretching 500 million lightyears across the Universe
A beginner's guide to the rings of Saturn, one of the Solar System's most beautiful features
Amazing facts about Saturn's rings, including when they were discovered and how old they are.