Space & Physics

Giants have featured in stories for millennia, but the reason why they don't exist helps explain the natural world

Betelgeuse, the sky’s most famous red supergiant, is well studied but poorly understood

Researchers have nailed down an elusive quantity called baryon number, which may be responsible for the cosmic mismatch between matter and antimatter

There’s a reason humans have been obsessed with these celestial events for millennia—they are beautiful

Relive the 2026 total solar eclipse, as seen by a drone over Spain

From a partial eclipse over Berlin to totality over Spain, see some of the incredible images of the August 12 total solar eclipse

First glimpsed as “little red dots” in deep-space images from the James Webb Space Telescope, these giant, gas-shrouded black holes are full of surprises

A new study of the Helix Nebula shows a never-before-seen detail of how dying stars recycle elements. Researchers found it by accident

This dying star appears to have a face of gas and a mane of space dust

Follow all the latest updates about the August 12 eclipse with Scientific American

The Eddington experiment used a solar eclipse to prove Albert Einstein’s general theory of relativity

Scientists analyze an accidental SpaceX impact on the moon as cyberattacks target U.S. water systems and a new mRNA flu vaccine is approved by the FDA