Unit 3 Crossword Puzzle

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Across
  1. 1. The unknown material in the universe does not interact with light and only interacts with gravity is Dark _______.
  2. 3. This is the last name of the astronomer who proved the existence of Dark Matter within the structure of galaxies.
  3. 5. This is the last name of the astronomer that first discovered dark matter and called it "missing mass".
  4. 7. This type of galaxy appears as a bulge or circular smudge.
  5. 10. This is the last name of the astronomer that discovered the Universe is expanding.
  6. 11. The name of our galaxy
Down
  1. 2. The unknown pressure in space that is causing a faster and faster expansion is known as Dark ________.
  2. 4. There is ________ times more Dark Matter than Baryonic Matter in the universe.
  3. 6. This is a large type of galaxy that rotates around a set of arms.
  4. 8. This type of galaxy is the most common in the furthest reaches of the universe.
  5. 9. This is the galaxy that is going to collide with our own.