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An asteroid is a minor planet —an object that is neither a true planet nor a comet —that orbits within the inner Solar System. They are rocky, metallic, or icy bodies with no atmosphere. The size and shape of asteroids vary significantly, ranging from small rubble piles under a kilometer across to Ceres, a dwarf planet almost 1000 km in diameter.
Learn about asteroids, the rocky leftovers from the early solar system, and their orbits, types, and threats. Find out how NASA studies and explores these cosmic objects with missions, telescopes, and more.
May 12, 2024 · Learn about asteroids, small bodies that orbit the Sun between Mars and Jupiter. Find out how they were discovered, named, and studied over time.
Learn about the composition, classification, and naming of asteroids, the rocky leftovers from the solar system's formation. Find out how asteroids are monitored and studied by NASA and other agencies.
May 6, 2024 · Learn about asteroids, small, rocky objects that orbit the sun and are leftovers from the formation of our solar system. Find out how scientists study asteroids and what they can tell us about the history of planets and the sun.
Learn about the composition, classification, and naming of asteroids, the rocky remnants from the early solar system. Find out how asteroids are monitored and studied by NASA and other agencies.
Sep 26, 2022 · LAUREL, Md. — It’s the plot point for more than one Hollywood blockbuster: A rogue asteroid is hurtling toward Earth, threatening tsunamis, mass destruction and the death of every human being on...
