Using two infrared space telescopes and a 23-year gap, scientists may have spotted a mysterious, slow-moving object beyond ...

An international team of researchers has discovered a massive molecular cloud that, if we could see it in our sky, would ...

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

The dark nebula is part of the Circinus West molecular cloud, which stretches for 180 light-years, containing a mass 250,000 ...

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 ...

Astronomers have confirmed a wandering black hole, about seven times the mass of the Sun, 5,000 light-years from Earth.

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