Astronomy Crossword

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Across
  1. 2. A massive flaming ball, lots of mass, the sun is one of these.
  2. 4. Last name, person who discovered dark matter and couldn't speak for the majority of his life due to a medical condition.
  3. 6. The galaxy we live in.
  4. 7. The closest planet to the sun.
  5. 9. The closest neighboring galaxy, said to collide with ours in 4 billion years.
  6. 11. Device used to watch the skies in closer detail, you could point it to the moon and see the individual craters.
  7. 12. The largest planet in our solar system.
  8. 13. One of the most famous planets in the skies, you know, the rings!
Down
  1. 1. A massive cluster of dark matter, the remains of an extremely large star post-supernova.
  2. 3. Jupiter's largest moon.
  3. 5. One of Jupiter's moons, has a massive water ocean under its surface, may contain life.
  4. 8. The closest star to Earth, besides the sun.
  5. 10. Originally the smallest planet in our solar system, now just a dwarf planet.
  6. 13. The star at the center of our solar system, the big yellow ball that appears in the sky every day.