On January 7, 1610, the Italian astronomer Galileo discovered three of Jupiter's moons: Callisto, Europa and Io. When he looked at Jupiter through his telescope, he saw what he thought were three tiny ...

This led us to find a pattern associated with a gravitational wave background, only it's a bit different from what other experiments have found. The pattern, which represents how space and time ...

The James Webb Space Telescope captured images of 44 individual stars in a gorgeous portrait of a distant galaxy.

NASA's James Webb Space Telescope has captured a unique image that revealed 44 individual stars in a galaxy 6.5 billion light ...

Though Carter never claimed to have spotted aliens or a flying saucer — to him this was literally an unknown object in the air — people snickered and mistook his UFO sighting as such. Skeptics, who ...

The cutting-edge observatory is charged with seeing some of the earliest visible light, and the recent image achieves a new ...

Looking halfway across the observable universe and expecting to see individual stars is considered a non-starter in astronomy ...

From solar storms to "shooting stars" over Stonehenge, here are our top 10 favorite space photos of 2024 — and what they told ...

Using NASA's James Webb Space Telescope, scientists have observed a galaxy nearly 6.5 billion light-years from Earth, and ...

Photos from the James Webb Space Telescope have revealed more than 40 stars within the gravitationally lensed "Dragon Arc" ...

A year of discovery awaits, with missions poised to reveal new insights about our home planet, solar system, galaxy, and ...

On this day three years ago, we witnessed the nail-biting launch of the James Webb Space Telescope (JWST), the largest and most powerful telescope humans have ever sent into space. It took 30 years to ...