Our 1st-ever up-close look at the Martian surface photo of the day for July 22, 2026

Something we’ve never seen before is coming out of a solar system in our galaxy, astronomers say

Astronomers have detected oxygen-rich gas 'bullets' traveling at extreme speeds from the Milky Way's only known helium nova.

A black bear's heart drops from roughly 55 beats per minute to as few as 8 during hibernation, yet it emerges in spring with almost no muscle or bone loss: a biological trick space agencies are studying to protect astronauts on long missions

Space agencies are studying the black bear's ability to hibernate without muscle or bone loss to protect astronauts on long-duration missions.

A Stray SpaceX Rocket Will Crash Into the Moon Next Month. Here's What You Should Know

A Google Maps search may have uncovered an ancient meteorite crater

Volcanoes Started Earth’s ‘Great Dying.’ This Unexpected Plant Made It Worse

Ancient wildfires across Europe intensified the 'Great Dying' as fern savannahs fueled a millennia-long inferno during end-Triassic warming.

Scientists Finally Found the Universe’s Missing ‘Ordinary’ Matter

Astronomers have identified the location of the universe's missing 'ordinary' baryonic matter, discovering it in diffuse puffs surrounding galaxies.