Time moves differently in space. Near black holes, gravity slows clocks and stretches seconds. This explainer reveals how time bends and affects astronauts and Earth.

NASA is monitoring a bus-sized asteroid that’s hurtling towards Earth at more than 38,500 miles per hour, according to the space agency's Center for Near Earth Object Studies (CNEOS). Estimated to ...

NASA is monitoring a bus-sized asteroid that is speeding toward Earth at nearly 20,500 miles per hour, according to the Center for Near Earth Object Studies (CNEOS). Measuring around 40 feet in ...

Explore Earth's cutting-edge defenses against asteroid impacts in this comprehensive overview. Learn how NASA and ESA are tracking thousands of Near-Earth Objects using advanced systems like SENTRY II ...

Black holes are powerful space objects that can pull in nearby stars. But how does this really happen? In this kid-friendly science explainer, learn how black holes stretch, heat and slowly “eat” ...

Astronomers peering through images from the Vera C. Rubin Obervatory have discovered an unusual asteroid spinning so fast that it's broken the record for how space rocks of its size are supposed to ...

China's EAST nuclear fusion reactor has successfully kept plasma stable at extreme densities, passing a major fusion milestone and potentially bringing humanity closer to wielding near-limitless clean ...

A powerful new telescope in South America is already offering tantalizing hints of what it can do. The Vera C. Rubin Observatory began studying the heavens from a Chilean mountaintop last spring, and ...

C/2024 E1 (Wierzchos) brightened significantly ahead of its close approach to the sun. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Breaking ...

Breakthroughs, discoveries, and DIY tips sent six days a week. Terms of Service and Privacy Policy. Astronomers have spotted an asteroid the size of nearly eight ...