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  1. Asteroid - Wikipedia

    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 …

  2. Asteroid | Definition, Size, & Facts | Britannica

    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 …

  3. Asteroids - Science@NASA

    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 …

  4. Scientists find ‘record-breaking’ asteroid nearly the size of eight ...

    3 days ago · 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

  5. Rubin Observatory spots fastest-spinning asteroid of its size

    4 days ago · The first peer-reviewed study using data from the SLAC-built LSST Camera identifies an asteroid nearly eight football fields long that spins once every two minutes.

  6. Asteroids: News, features and articles | Live Science

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

  7. World’s largest digital camera spots massive asteroid

    3 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.

  8. What is an asteroid? A beginner's guide to the spacerocks and …

    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.

  9. Asteroid - ESA/Hubble

    Asteroids are rocky celestial bodies that orbit the Sun, but do not meet the requirements to be classified as a planet. The term asteroid covers a very broad range of Solar System objects, …

  10. Clemson astrophysicists tell us about asteroids and whether we …

    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 …