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 ...

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 ...

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

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.