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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. Eyes on Asteroids - Home - NASA/JPL

    2 days ago · Explore the 3D world of Asteroids, Comets and NEOs. Learn about past and future missions, tracking and predicting orbits, and close approaches to Earth.

  3. NASA Tracking Bus-Sized Asteroid Nearing Earth Today

    2 days ago · NASA is monitoring a bus-sized asteroid that’s hurtling towards Earth at more than 38,500 miles per hour, according to the space agency's Center for Near Earth Object Studies …

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

    5 days ago · 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 …

  5. Vera C. Rubin Observatory discovers enormous, record-breaking asteroid

    Jan 7, 2026 · 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 …

  6. Record-Breaking Asteroid Spins So Fast It Should Tear Itself Apart

    Jan 9, 2026 · With data collected months before its main survey is due to begin, the Vera C. Rubin Observatory is already upending what we thought we knew about asteroids. In the Main …

  7. 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.

  8. This Newly Discovered Asteroid, Almost Half a Mile Wide, Just Set …

    Jan 8, 2026 · A giant asteroid has sent astronomers into a spin, setting a record for how fast it rotates on its axis

  9. Vera Rubin Observatory spots the fastest-spinning large asteroid

    Jan 8, 2026 · The Vera Rubin Observatory has found 19 new "superfast rotator" asteroids, including the fastest-spinning big space rock ever found.

  10. 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 …