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Asteroid - Wikipedia
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 ...
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.
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What are asteroids? | Space
Asteroids come in a variety of shapes and sizes and teach us about the formation of the solar system.
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.
Next Asteroid to Hit Earth | Asteroid 2026 | Asteroid Heading Towards Earth
Is it likely for an asteroid to hit Earth anytime soon? In this article, we’ll answer the most burning questions about potentially hazardous asteroids.
Asteroid Alerts
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: 2 close approaches within 5 lunar distances and 3 objects with elevated risk factors.
Newly discovered, blue-whale-size asteroid will fly super close to ...
Space Astronomy Asteroids Newly discovered, blue-whale-size asteroid will fly super close to Earth today — and you can watch it live Newly spotted asteroid 2026 JH2, which could be up to 115 ...
What is an asteroid? A beginner's guide to the spacerocks and where ...
What are asteroids, where do they come from and how can you see an asteroid in the night sky? A guide to these fascinating space rocks.
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