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 · 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 …

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 …

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 …