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   Where do asteroids come from?

   • Asteroids are the rocky remnants of material leftover from the formation of the solar system and its planets approximately 4.6 billion years ago. The majority of asteroids originate from the main asteroid belt located between Mars and Jupiter, according to NASA. NASA's current asteroid count is over 1 million.

   What are asteroids? | Space

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   What are asteroid remnants?

   • 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. The current known asteroid count is at least 1,351,400. Most of this ancient space rubble can be found orbiting the Sun between Mars and Jupiter within the main asteroid belt.

   Asteroids - NASA Science

   science.nasa.gov/solar-system/asteroids/

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   Why are asteroids left over from the formation of our Solar System?

   • Asteroids are left over from the formation of our solar system. Our solar system began about 4.6 billion years ago when a big cloud of gas and dust collapsed. When this happened, most of the material fell to the center of the cloud and formed the sun. Some of the condensing dust in the cloud became planets.

   What Is an Asteroid? | NASA Space Place – NASA Science for Kids

   spaceplace.nasa.gov/asteroid/en/

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   What are asteroids & comets?

   • Asteroids, comets, and meteors are chunks of rock, ice, and metal left over from the formation of our solar system 4.6 billion years ago. They are a lot like a fossil record of our early solar system. There are currently about 1.3 million known asteroids, and more than 3,800 known comets. Explore the 3D world of asteroids, comets, and NEOs.

   Asteroids, Comets & Meteors - Science@NASA

   science.nasa.gov/asteroids-comets-meteors/

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2. science.nasa.gov › solar-system › asteroidsAsteroids - NASA Science

   science.nasa.gov › solar-system › asteroids

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   Overview. 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. The current known asteroid count is at least 1,351,400. Most of this ancient space rubble can be found orbiting the Sun between Mars and Jupiter within the main asteroid belt.

   • Asteroids: Facts

     Asteroids range in size from […] Asteroids, sometimes called...

   • What Is an Asteroid

     Asteroids are small, rocky objects that orbit the sun....

   • Asteroids, Comets & Meteors

     Overview Asteroids, comets, and meteors are chunks of rock,...

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     Apophis - NASA Science
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     Bennu - NASA Science
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     4 Vesta - NASA Science

3. www.space.com › 51-What are asteroids? | Space

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   Jul 28, 2023 · Asteroids are space rocks that mostly exist between Mars and Jupiter. They are made of material left over from the birth of the solar system.

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4. Videos

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     What Are Asteroids And Where Do They Come From?

     Jul 13, 2020

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     Comets, Asteroids, and Meteors | Learn all about what they are made of and how they differ

     Dec 30, 2020

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     All Known Asteroids in the Solar System (1999-2018)

     Jul 23, 2018

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5. www.astronomy.com › science › asteroids-what-theyAsteroids: What they are and where they come from

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   Nov 27, 2023 · Over a million asteroids are zipping around the Sun. Here’s what you should know about our distant neighbors. By Avery Hurt | Published: November 27, 2023. Sergey Nivens/Shutterstock. When we ...

6. solarsystem.nasa.gov › asteroids-comets-andIn Depth | Asteroids – NASA Solar System Exploration

   solarsystem.nasa.gov › asteroids-comets-and

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   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.