Space & Physics

A private spacecraft launched to boost the decaying orbit of NASA’s Swift Observatory is now suffering from potentially mission-ending malfunctions

SciAm books editor Bri Kane shares her favorite science books for every summer mood

After decades of hints and speculation, scientists have at last unveiled the hidden companion to the iconic star Betelgeuse

In searches for past and present Martian life, some scientists say we’ve been too cautious to see what’s right in front of us

Starship demonstrated key abilities on its path to becoming a fully reusable transport to take astronauts to the moon

Using the new Vera C. Rubin Observatory, astronomers are beginning the largest and deepest survey of the sky. What will they see?

The 2026 Fields Medals recognize breakthroughs in the math of messy fluids, tangled knots, spinning pencils, and more

There are many observations of animals behaving oddly during eclipses, but the reason may have nothing to do with the sun and moon

This almost Jupiter-sized object is orbiting a brown dwarf, which, in turn, is circling around a small star

The Psyche spacecraft flew by Mars earlier this year on its way to a metal-rich asteroid, capturing the images along the way

For the first time ever, astronomers have found two sibling stars that each exploded as a supernova, giving us a new view of these epochal cosmic cataclysms

Astronomers have a plan to observe an errant piece of a SpaceX rocket as it hits the moon to better understand impact events