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 …

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 …

Dec 24, 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 …

18 hours ago · Grab-and-go missions to asteroids have provided some of the most scientifically valuable samples since the Apollo missions—and they’re shaking up the search for life beyond …

Dec 1, 2025 · Discover the rocky objects orbiting our sun with the latest asteroid news, features and articles.

Feb 13, 2025 · NASA has discovered an asteroid 30 million miles away from Earth that the agency says has an increasing chance to strike our planet by December 2032, less than eight …

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.

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 …

Asteroids are cosmic time capsules. These ancient rocks, left over from the formation of the Solar System, offer a direct link to our distant past. They provide clues to how planets like Earth …

2 days ago · A few years ago, asteroid mining was all the rage. With the commercial space sector rapidly growing, the dream of commercializing space seemed almost imminent. Basically, the …