An asteroid is a minor planet —an object larger than a meteoroid that is neither a planet nor an identified comet —that orbits within the inner Solar System or is co-orbital with Jupiter (Trojan …

3 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.

4 days ago · NASA's OSIRIS-APEX spacecraft captured stunning new images as it whipped past Earth during a high-speed slingshot maneuver, sending the probe on a fast track toward the …

Oct 20, 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 …

Nov 22, 2025 · Asteroid 2022 RD2 could become one of the few near-Earth objects to shift from a mini moon to a crash risk in a single lifetime.

3 days ago · Scientists find evidence that an asteroid contains tryptophan New analysis of NASA’s Bennu asteroid sample identifies tryptophan, expanding what we know about the origins of life.

4 days ago · An essential amino acid that is mistakenly believed to cause drowsiness after eating turkey has been found in an asteroid for the first time, giving scientists clues to the origin of life …

2 days ago · The first near-Earth asteroid ever discovered by humans, 433 Eros, will have a close fly-by of Earth this weekend, and it should stay visible for a few weeks for anyone with a half …

Oct 5, 2024 · An asteroid is a small, rocky object that orbits the Sun, primarily found in the asteroid belt between Mars and Jupiter. Asteroids range in size from tiny pebbles to massive …

May 5, 2025 · Asteroids, sometimes called minor planets, are rocky remnants left over from the formation of our solar system about 4.6 billion years ago. For the most up to date count of …