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

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

At first glance, the darkness of space seems obvious — but according to physics, it shouldn’t be dark at all. Known as Olbers ...

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 ...

The Standard Model of our universe doesn’t match the evidence, in part because of dark energy, a ghostly force pushing the ...

This video explains how scientists estimate the size of the observable universe, what “radius” means in cosmology, and why ...

Dark matter, one of the Universe’s greatest mysteries, may have been born blazing hot instead of cold and sluggish as ...

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

A supermassive black hole embedded in an early galaxy likely starved the galaxy of gas needed to form young stars, new ...

New telescope instruments now reveal distant galaxies in detail, reshaping how astronomers map dark matter, star formation, ...

NASA has unveiled a breathtaking new infrared map of the Universe from its SPHEREx mission, offering fresh insight into ...

One of the world's most sophisticated scientific facilities is turning to ultra-low temperatures to try and unravel hidden ...