Across
- 4. a meteroid observed as it burns in the Earth’s atmosphere
- 5. galaxy galaxy with no internal structure and contains little to no gas and dust
- 6. everything that exists, including all matter and energy, consists of mostly empty space
- 9. galaxy has a bulge, disk, halo, the Milky Way is this kind of galaxy
- 10. celestial objects, we have 8 of these in our solar system
- 11. large rocks that are too small to be planets
Down
- 1. called “dirty snowballs”, mixture of frozen gases and particles of dust
- 2. galaxy this galaxy has no distinct shape and are oddly shaped
- 3. giant clouds of gas and dust in the spaces between stars, birthplace of stars
- 7. of the Big Bang Arno Penzias and Robert Wilson detected leftover radiation through a radio telescope, Hubble’s Law states that the farther away the galaxy is, the faster it’s moving
- 8. made of gas and produce their own light and heat