Solar system 2

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Across
  1. 2. 2 words.A sudden eruption of intense high-energy radiation from the sun's surface.
  2. 5. The force that attracts a body toward the center of the earth, or toward any other physical body having mass.
  3. 8. A large, bowl-shaped cavity on a celestial body's surface caused by an impact.
  4. 9. The different shapes of the moon we see from Earth.
  5. 10. An instrument used to observe objects in space.
  6. 11. An object that orbits planets or dwarf planets, natural like the moon, or artificial like the Hubble Space Telescope.
  7. 12. A vehicle for exploring the surface of an extraterrestrial body (like Mars).
  8. 13. 2 words.The galaxy that contains our Solar System.
Down
  1. 1. 2 words.A region of the solar system beyond the orbit of Neptune, believed to contain many comets, asteroids, and other small bodies made largely of ice.
  2. 3. 2 words.The region of space between the orbits of Mars and Jupiter where most asteroids are found.
  3. 4. 2 words.The distance that light travels in one year, about 9.46 trillion kilometers.
  4. 6. A small body of matter from outer space that enters the earth's atmosphere, appearing as a streak of light.
  5. 7. A person who is trained to travel in space.