Our best models of the cosmos don't add up — but that could change if the universe is actually made of a viscous 'fluid,' a ...

Wormholes are often imagined as tunnels through space or time—shortcuts across the universe. But this image rests on a ...

If dark stars existed, they would have been capable of forming in the universe before ordinary stars could have formed. When ...

When analyzing early universe data, the Standard Model of Cosmology suggests that the universe should be more “clumpy” that ...

NASA's SPHEREx telescope unveiled its first full-sky map of the universe, combining more than 100 infrared observations into ...

The coldest and densest molecular gas clouds in the interstellar medium can have temperatures of 10 K (-505 °F/-263 °C), ...

Learn how fleeting red points seen in the early universe mark a brief growth phase of young black holes hidden inside dense ...

Nearly everything in the universe is made of mysterious dark matter and dark energy, yet we can’t see either of them directly ...

Scientists are a step closer to solving one of the universe's biggest mysteries as new research finds evidence that two of ...

Scientists build ultra-sensitive detectors to study dark matter and dark energy, which make up most of the universe but remain unseen and poorly understood ...