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What's the Difference Between a Comet and an Asteroid?

Comets are like dirty snowballs, and asteroids are like rocks. When comets get close to the Sun, they warm up and release gas and dust, making them shine brightly in the sky. Asteroids don’t have this extra stuff, so they just look like dark rocks even when they’re near the Sun.

Why They Look Different

Comets come from the far reaches of our Solar System and are made mostly of ice, rock, and dust. As they travel closer to the Sun, their ice melts, creating a glowing tail that we can see from Earth. Asteroids live mainly in the asteroid belt between Mars and Jupiter and are made mostly of rock or metal. They don’t have much ice, so they stay dull even when they pass close to the Sun.

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Examples

  1. A comet is like a snowball from space, it shines brightly because of its glowing tail when it gets close to the Sun.
  2. An asteroid is more like a rock, it doesn’t have ice, so it just looks dull even when it passes near the Sun.
  3. Imagine a comet as something that turns on lights in the sky, while an asteroid stays dark and quiet.

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Categories: Space · comet· asteroid· space objects · Text is available under the Creative Commons Attribution-ShareAlike License.