What is geospace?, The space dominated by Earth's magnetic field., Where is Earth located?, Earth is located in the Milky Way Galaxy., Which planets make up the outer solar system?, Jupiter, Saturn, Uranus, and Neptune., What is the belt of icy objects surrounding the outer solar system called?, The Kuiper Belt., What famous dwarf planet is located in the Kuiper Belt?, Pluto., How big is the Milky Way galaxy?, About 100,000 light years across., What is the Sun?, A star at the center of the Solar System., What layers make up the structure of the Earth?, The lithosphere, asthenosphere, mesospheric mantle, outer core, and inner core., What provides Earth with heat and light?, The Sun., Where is the asteroid belt located?, Between Mars and Jupiter., What are asteroids?, Rocky objects that orbit the Sun, mostly found in the asteroid belt., What is the universe?, All matter and energy, and it is expanding at an accelerating rate., What force keeps planets in orbit around the Sun?, Gravity., What is a light year?, The distance light travels in one year (about 9.46 trillion km)..

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