Eyes on Asteroids - NASA JPL 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 - Wikipedia 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 asteroids)
Asteroids - Science@NASA Most asteroids can be found orbiting the Sun between Mars and Jupiter within the main asteroid belt Asteroids range in size from Vesta – the largest at about 329 miles (530 kilometers) in diameter – to bodies that are less than 33 feet (10 meters) across
What Is an Asteroid? | NASA Space Place – NASA Science for Kids A close-up image of the asteroid Ida taken by NASA's Galileo spacecraft Image credit: NASA JPL-Caltech UCLA MPS DLR IDA There are lots of asteroids in our solar system Most of them live in the main asteroid belt—a region between the orbits of Mars and Jupiter
Asteroid | Definition, Size, Facts | Britannica 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
Asteroid Watch - NASA Jet Propulsion Laboratory (JPL) Asteroid Watch: Keeping an Eye on Near-Earth Objects Managed for NASA at the Jet Propulsion Laboratory, the Center for Near Earth Object Studies ( CNEOS ) accurately characterizes the orbits of all known near-Earth objects, predicts their close approaches with Earth, and makes comprehensive impact hazard assessments in support of the agency’s
Asteroid Fast Facts - NASA Asteroid: A relatively small, inactive, rocky body orbiting the Sun Comet: A relatively small, at times active, object whose ices can vaporize in sunlight forming an atmosphere (coma) of dust and gas and, sometimes, a tail of dust and or gas
In Depth | Asteroids - NASA Solar System Exploration Stray asteroids and asteroid fragments have slammed into Earth and the other planets in the past, playing a major role in altering the geological history of the planets and in the evolution of life on Earth
Asteroid: Definition, Size, Difference, Visibility, Facts 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 bodies hundreds of kilometers across, with the largest, Ceres, measuring approximately 946 kilometers (588 miles) in diameter
Asteroid Facts - Interesting Facts about Asteroids - Space Facts What is an Asteroid? Asteroids are small, rocky solar system bodies that populate interplanetary space out to the orbit of Jupiter There are millions of them, and they are often grouped by their composition