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

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 ...

New photos show off NASA's newly constructed Roman Space Telescope, which will soon help researchers unravel the mysteries of ...

Using the James Webb Space Telescope (JWST), an international team of astronomers has discovered a new Type II supernova. The ...

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 ...

A supermassive black hole is reawakening inside a distant galaxy cluster—and after almost 100 million years of slumber, ...

The US, China, India, Europe and Japan all have exciting missions on the horizon in 2026. Many of them are collaborative ...

Scientists used Cosmic Microwave Background data to challenge our understanding of the universe's shape. Here's what they ...

Learn how Hubble is measuring the expansion rate of the Universe in this new explainer from NASA's Goddard Space Flight ...