- 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
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 the Sun between Mars and Jupiter within the main asteroid belt
- 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
- 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
- What Are Asteroids? (Ages 14-18) - NASA
What are asteroids? Asteroids are rocky objects that orbit the Sun just like planets do In fact, sometimes asteroids are called “minor planets ” These space rocks were left behind after our solar system formed about 4 6 billion years ago Asteroids are found in a wide range of sizes For example, one small asteroid, 2015 TC25, has a diameter of about 6 feet – about the size of a small
- What Is an Asteroid? | NASA Space Place – NASA Science for Kids
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 NASA's Galileo spacecraft Image credit: NASA JPL-Caltech UCLA MPS DLR IDA There are lots of asteroids in our solar system
- Asteroid 2024 YR4 might smash into the moon - Popular Science
Science Space Deep Space Space Telescope Asteroid 2024 YR4 might smash into the moon Astronomers estimate the chances of a collision are 4 percent By Andrew Paul Published Jun 30, 2025 4:05 PM EDT
- In Depth | Asteroids – NASA Solar System Exploration
Asteroids, sometimes called minor planets, are rocky remnants left over from the early formation of our solar system about 4 6 billion years ago The current known asteroid count is: Most of this ancient space rubble can be found orbiting our Sun between Mars and Jupiter within the main asteroid belt
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