31 Hours Inside SpaceX Mission Control

A reporter got an inside look at SpaceX’s attempt to launch and land three rockets in…

The Webb Telescope Is Just Getting Started

The first scientific results are coming in, and the $10 billion instrument is working even better…

NASA InSight Mars Mission Is Dead After 4 Years Listening for Marsquakes

After four years of making important discoveries about the interior of the red planet, the stationary…

How Naming the James Webb Telescope Turned Into a Fight Over Homophobia

Did the former head of NASA discriminate against gay people? One physicist tried to rebut the…

Russian Spacewalk Is Canceled Due to Coolant Leak

When mission controllers observed white particles spewing from a spacecraft that serves as a “lifeboat” for…

50 Years After the Apollo 17 Mission, the Moon Looks Closer Than Ever

Astronauts from NASA said goodbye to the moon for the last time on Dec. 14, 1972.…

How Science Fiction Movies Prepared Us for the Nuclear Fusion Breakthrough

The promise of a new, bountiful energy source, not to mention the giant lasers, may sound…

An Ancient ‘Horizon Calendar’ Comes Into View Over Mexico City

Scientists suggest in a new study that ancient Mesoamericans tracked leap years using a sunlit horizon. …

Geminid Meteor Shower: How and When to Watch It Peak

Tuesday night into Wednesday morning will be one of the dates scattered throughout each year when…

China Maps Out Plans to Put Astronauts on the Moon and on Mars

Chinese officials at a desert rocket base described plans for their new space station and for…