About 85,100 results
Open links in new tab
  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 · You are looking at a real-time visualization of every known asteroid or comet that is classified as a Near-Earth Object (NEO). With asteroids represented as blue points, and comets as …

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

    Mar 6, 2026 · 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 …

  4. A massive asteroid hit the North Sea and triggered a 330-foot tsunami

    5 days ago · A long-running debate about the Silverpit Crater beneath the North Sea has finally been resolved. Scientists now confirm it formed when a roughly 160-meter asteroid struck the seabed …

  5. 'City killer' asteroid will narrowly miss the moon, James Webb ...

    Mar 6, 2026 · The "city killer" asteroid 2024 YR4 won't hit Earth or the moon when it whizzes by in 2032, the latest James Webb Space Telescope observations confirm.

  6. ‘The moon is safe’: asteroid is not on collision course, scientists ...

    4 days ago · ESA’s Planetary Defence team allays fears 100-metre-wide object could hit Earth’s moon and disrupt satellites Fears that a 100-metre-wide asteroid could be on course to collide with the …

  7. Clemson astrophysicists tell us about asteroids and whether we need …

    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 …

  8. NASA tracking bus-sized asteroid approaching Earth tomorrow

    4 days ago · NASA is monitoring a bus-sized asteroid that is speeding towards our planet at more than 21,500 miles per hour, according to the the space agency's Center for Near Earth Object Studies …

  9. Asteroids - Science@NASA

    Mar 9, 2026 · 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 …

  10. NASA's asteroid deflection test for planetary defence even more ...

    1 day ago · The Double Asteroid Redirection Test (DART) mission not only altered an asteroid’s orbit but, for the first time, a new study shows we also successfully changed the asteroids' path around …