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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-orbital with Jupiter …

  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 (CNEOS). …

  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 called the asteroid …

  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 sets a new record.

  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 Belt of …

  7. What is an asteroid? A beginner's guide to the spacerocks and where ...

    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 a …

    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 ever ...

    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 found orbiting …