The Universe

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Across
  1. 2. All of space and time and their contents, including planets, stars, galaxies, and all other forms of matter and energy.
  2. 4. The prevailing cosmological model for the universe's origin and early development.
  3. 8. Our cosmic address, a spiral galaxy.
  4. 10. The theory that explains the rapid expansion of the early universe.
Down
  1. 1. A period of extremely rapid expansion in the very early universe.
  2. 3. The star at the center of our solar system
  3. 5. Vast collections of stars, gas, dust, and dark matter held together by gravity; our "island universe."
  4. 6. Gravity is the fundamental force of nature by which all things with mass are brought toward one another.
  5. 7. The collection of planets, moons, and other celestial bodies gravitationally bound to a star.
  6. 9. The galaxy that contains our solar system.