The largest protoplanetary disk ever has been found by the Hubble Space Telescope and is quite active as materials stretch in the system.

The best time to view the Milky Way in the Northern Hemisphere is from March to September. The Milky Way, our home galaxy ...

"I think every astronomer is going to find something of value here, as NASA's missions enable the world to answer fundamental questions about how the universe got its start, and how it changed to ...

From an interstellar comet to breathtaking auroras and from brand-new rockets to iconic space telescopes, here are some of our favorite images from the cosmos in 2025 ...

NASA's Hubble Space Telescope has gotten a rare peek at the aftermath of two cosmic collisions — and helped scientists solve ...

Our understanding of the true nature of the cosmos relies on measurements of its expansion, but cosmologists have been ...

Our universe is filled with galaxies, in all directions as far as our instruments can see. Some researchers estimate that ...

On Dec. 15, 1612, the Andromeda galaxy was seen through a telescope for the first time by a German astronomer named Simon ...

A mysterious excess of far-ultraviolet light seen across the Milky Way could come from the annihilation of clumpy dark matter ...

Nearly half a century after it left Earth, a battered spacecraft built with 1970s electronics is closing in on a frontier no ...

A Star Trek–inspired idea by Miguel Alcubierre kicked off decades of theory and experiments as scientists pursue plausible ...

A grand-design spiral galaxy, named Alaknanda, was discovered forming approximately 1.5 billion years after the Big Bang, challenging previous astrophysical models on the timescale required for ...