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 (Trojan asteroids). Asteroids are rocky, metallic, or icy bodies with no atmosphere, and are broadly classified into C-type (carbonaceous), M-type (metallic), or S-type ...
Explore the 3D world of Asteroids, Comets and NEOs. Learn about past and future missions, tracking and predicting orbits, and close approaches to Earth.
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 asteroid belt. Hundreds of thousands of asteroids are known.
NASA has confirmed exactly when a rare, colossal-sized asteroid will hurtle past Earth, coming closer to our planet than any other celestial object of its size in human history. The asteroid ...
NASA announces exact date 'God of Chaos' asteroid will pass close to ...
A rare, colossal-sized asteroid is on course to fly by Earth — and will come closer to our planet than any other rocks of its size in human history.
‘Once in a lifetime’: Exact date feared asteroid due to pass by Earth ...
Welcome to Asteroid Alerts, your source for tracking Near-Earth Objects and potential asteroid threats. Our system continuously monitors data from Minor Planet Center and NASA Sentry to keep you informed. Current monitoring shows: 3 close approaches within 5 lunar distances and 3 objects with elevated risk factors.