The local universe may be expanding more slowly than previously thought, a discovery that could relieve a pesky discrepancy ...

The universe is overrun with dark matter, outweighing the ordinary stuff that stars and planets are made of five-to-one. But ...

NASA said CDG-2 “may be among the most heavily dark matter-dominated galaxies ever discovered” ...

The Hubble Space Telescope saw Comet 41P stop spinning completely, and then restart, but in the opposite direction.

Hubble Space Telescope imagery Neptune has revealed that the planet's clouds are disappearing. Credit: NASA Goddard Space ...

For this month's ESA/Hubble Picture of the Month, NASA/ESA's Hubble Space Telescope is joined by ESA's Euclid to create a new ...

Astronomers have released a new view of the Cat’s Eye Nebula using Hubble and Euclid telescopes, revealing complex gas shells ...

A subtle gravitational-wave “hum” from merging black holes may help settle the cosmic fight over how fast the universe is ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. A dramatic rise in the number of internet satellites ...

Two new studies have measured the expansion of the universe in our immediate cosmic neighborhood using a novel method that ...