Astronomers thought the Perseus cluster was a massive-but-stable grouping of galaxies, until they found hints of a collision ...

The largest sample of galaxy groups ever detected has been presented by a team of international astronomers using data from ...

A rare and dramatic scene unfolds 140 light-years from Earth. A rocky planet, once whole, is now crumbling to dust under the ...

An awe-inspiring look at how scientific knowledge builds upon itself gradually – one ingenious measurement at a time ...

Using the James Webb Space Telescope, astronomers are working to confirm potential evidence of life on a distant exoplanet ...

Objects in newly discovered classes also tend to be faint because, again, bright objects will have already been spotted. This ...

On a faraway planet, the James Webb Space Telescope has picked up signs of molecules that, on Earth, are produced only by ...

The planet orbits its host star in just 30.5 hours, losing a mass of material roughly equal to Mount Everest each time ...

A new survey of distant galaxies undertaken by the James Webb Space Telescope (JWST) is revealing new secrets of the "cosmic ...

Scientists have discovered a planet that is literally falling apart as it orbits its star. Located about 140 light-years from ...

In the grand puzzle of the cosmos, one question continues to defy easy answers: how fast is the universe expanding?

The trio is a rarity—and when all of its unusual traits are considered together, it is unique.