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 …

8 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 …

14 hours ago · The Vera C. Rubin Observatory has discovered the fastest-spinning large asteroid so far, completing a turn in under two minutes.

Dec 1, 2025 · Discover the rocky objects orbiting our sun with the latest asteroid news, features and articles.

1 day ago · Astronomers have spotted an asteroid the size of nearly eight football fields, with the help of the largest digital camera in the world and a new space observatory.

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 …

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.

2 days ago · The results demonstrate that asteroid materials can absorb significantly more energy than conventional models suggest, without fragmenting - and may even become tougher …