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 …

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 …

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 …

2 days ago · In its preliminary data release, taken from just seven nights of observations, the powerful Vera C. Rubin Observatory has discovered an enormous, fast-spinning asteroid that …

3 days ago · Key takeaways: Astronomers have discovered the fastest-ever spinning asteroid with a diameter over half a kilometer. The study provides crucial information about asteroid …

15 hours ago · PHOENIX — A newly discovered asteroid spins about as fast as a Ferris wheel. With a rotation period of just 112 seconds, it’s the new record holder for fastest-spinning …

9 hours ago · Scientists using a powerful new sky survey telescope have discovered something extraordinary: an asteroid larger than six football fields spinning like a top at breakneck speed, …

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.

Jun 23, 2025 · Asteroids can give scientists key insights into the formation of our solar system and the Milky Way. They contain materials that predate the formation of our solar system. Earlier …

1 day ago · The Vera Rubin Observatory has found 19 new "superfast rotator" asteroids, including the fastest-spinning big space rock ever found.