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

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 ...

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

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 ...

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

Puzzling red spots in photos from the James Webb Space Telescope are probably young supermassive black holes obscured by ...

Positive curvature, like that on a sphere, implies a finite universe, while zero curvature, as on a flat plane or negative ...

This video explains how scientists estimate the size of the observable universe and what we mean by its “radius,” using clear ...

Alfredo has a PhD in Astrophysics and a Master's in Quantum Fields and Fundamental Forces from Imperial College London.

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