We all need some space sometimes—but it's harder to find than you might think. How far into our universe do we have to go to ...

For science-fiction enthusiasts, that’s a bit depressing. Space is big, and while the speed of light is incredibly fast to us ...

The mysterious interstellar comet 3I/ATLAS is absolutely blasting out water at a staggering rate, astronomers found.

From early experiments with lanterns to Einstein’s revelations about space and time, the speed of light has proven to be far more than a number: it’s the cosmic constant that defines reality.

A discovery of binary stars could be the first step in building a more complete picture of how our galaxy formed, according ...

In the name of open science, the multinational scientific collaboration COSMOS on Thursday has released the data behind the largest map of the universe. Called the COSMOS-Web field, the project, with ...

A new study explores the potential of nuclear fission-powered propulsion for advanced deep space exploration. Specifically, it looks at the way this technology could enable exploration to the outer ...