
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 - Science@NASA
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 …
Asteroid To Miss Earth, But It Might Hit The Moon | Weather.com
1 day ago · The latest data on asteroid 2024 YR4 has scientists confident that Earth is no longer in the bullseye. However the enormous space rock could hit the moon in late 2032 and that …
What Is an Asteroid? | NASA Space Place – NASA Science for Kids
Jul 2, 2025 · Asteroids are small, rocky objects that orbit the sun. Although asteroids orbit the sun like planets, they are much smaller than planets. A close-up image of the asteroid Ida taken by …
Asteroid | Definition, Size, & Facts | Britannica
Jul 18, 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 …
Eyes on Asteroids - NASA/JPL
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 white …
In Depth | Asteroids - NASA Solar System Exploration
Most of this ancient space rubble can be found orbiting our Sun between Mars and Jupiter within the main asteroid belt. Asteroids range in size from Vesta – the largest at about 329 miles (530 …
Asteroid Fast Facts - NASA
Mar 31, 2014 · About once a year, an automobile-sized asteroid hits Earth’s atmosphere, creates an impressive fireball, and burns up before reaching the surface. Every 2,000 years or so, a …
What are the chances of Earth being hit by a big asteroid?
Jun 30, 2025 · Asteroids are rocks and debris left over from the formation of our solar system. There are two main areas where much of it is located. The first being the asteroid belt between …
Asteroid Facts - Science@NASA
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 …