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-orbital with Jupiter …

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 called the …

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 found orbiting …

2 days 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.

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

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 this year, a …

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

2 days ago · The asteroid, 2025 MN45, completes a full rotation once every 1.88 minutes, meaning it must have a very high strength to keep itself together.

5 days ago · This asteroid is spilling secrets about the origin of life on Earth Grab-and-go missions to asteroids have provided some of the most scientifically valuable samples since the Apollo …