Across
- 3. a majority of our universe is made up of it
- 6. When the new moon blocks the sun's light from reaching earth
- 7. all planets orbit in this shape
Down
- 1. scientist who stated that the farther away a galaxy is, the faster it will move away from us
- 2. scientists believe it is causing the expansion of the universe to accelerate
- 4. getting smaller
- 5. his first law is that all planets orbit in an ellipses and have the sun at one focus