An asteroid is a minor planet —an object larger than a meteoroid (thus 1 meter or larger) that is neither a planet nor an identified comet —that orbits within the inner Solar System or is co …

1 day ago · 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 …

Apr 25, 2025 · Asteroids, sometimes called minor planets, are rocky, airless remnants left over from the early formation of our solar system about 4.6 billion years ago. Most asteroids can be …

Dec 24, 2025 · Asteroid, any of a host of small bodies, about 1,000 km (600 miles) or less in diameter, that orbit the Sun primarily between the orbits of Mars and Jupiter in a nearly flat ring …

Jan 8, 2026 · Scientists find ‘record-breaking’ asteroid nearly the size of eight football fields. Is it close to Earth? The asteroid was discovered using data from the world’s largest camera

NASA’s asteroid trackers have just watched a school‑bus‑sized space rock make a safe, distant pass by our planet, part of a steady stream of small objects that routinely zip through the ...

Feb 19, 2025 · What are asteroids, where do they come from and how can you see an asteroid in the night sky? A guide to these fascinating space rocks.

4 days ago · An international team of astronomers has discovered an asteroid that spins so fast, it should've torn itself apart.

Dec 3, 2025 · These are the planetary defenders who are on the hunt for the next big asteroid that could impact Earth — and how we might stop it.

Jan 8, 2026 · Researchers with the National Science Foundation discovered an asteroid spinning at a record-breaking speed.