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 …

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 …

Jan 13, 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 …

NASA is tracking a near-Earth asteroid called 2026 BJ8 that is moving through space at around 50,000 kmph and is roughly the size of an airplane. Although its speed and relatively close approach ...

Feb 6, 2026 · The asteroid, around 100 feet in diameter, is speeding toward our planet at about 22,000 miles per hour, according to NASA.

4 days ago · The origins of the building blocks of life may be even more widespread than we realized, as per a new discovery from the asteroid sample NASA's OSIRIS-REx mission brought back to Earth …

Feb 3, 2026 · Discover the rocky objects orbiting our sun with the latest asteroid news, features and articles.

3 days ago · Observation time on the James Webb Space Telescope, normally reserved for “urgent discoveries,” has just been allocated to track asteroid 2024 YR4.

3 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 …

6 days ago · Amino acids, the building blocks necessary for life, were previously found in samples of 4.6-billion-year-old rocks from an asteroid called Bennu, delivered to Earth in 2023 by NASA’s …