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# Kuiper Belt Definition

The Kuiper Belt is a large region in the solar system beyond Neptune with icy bodies like Pluto. For example, other dwarf planets that orbit the Sun are found there.

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## The Solar System

### Fun Facts

• Pluto, Eris, Makemake, and Haumea are dwarf planets in the Kuiper belt.
• The Kuiper belt is 20 times larger than the asteroid belt.
• The Kuiper belt is donut-shaped and contains millions of pieces of ice and rock.

### Why Do We Need To Know About Kuiper Belt

Studying the Kuiper Belt helps us get why our solar system is set up the way it is and why it’s important for space scientists to look into far-off areas. This can help us figure out how the solar system started, which might tell us how conditions were right for life to start on Earth.

Knowing about the Kuiper Belt is useful for keeping Earth safe from space dangers and for planning trips into deep space. Learning about the objects in the Kuiper Belt is key for spotting anything that might hit Earth and for setting up missions to learn more about the far parts of our solar system. This helps us be better prepared for space activities and pushes science forward.

Why is it important to use a scale model to describe the solar system?
So that we are better able to understand the actual distances between and sizes of the planets. Many models misrepresent this mathematical information.
Describe the only star in our solar system.
The only star in our solar system is the Sun which contains 99.8% of all the solar system’s mass. It is an exploding ball of hot gases.
How do scientists classify whether or not an object is a planet?
In order to be a planet, it must: 1. Orbit the Sun 2. Be massive enough to be round due to gravity, 3. Have cleared the neighborhood around its orbit of other objects
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