Across
- 1. Dense clusters of gas where stars are born
- 5. The path that a stellar mass takes around its parent mass
- 7. One of billions of clusters of stars and planets held together by gravity
- 8. A planet with a high likelihood of inhabiting life
- 10. A fundamental force that acts on everything with mass
Down
- 2. Describes the expanding space in which all matter resides
- 3. An incredibly small particle that is found in everything in the universe
- 4. Resides in the center of a black hole
- 6. A large, spherical mass with a molten core and an atmosphere
- 9. A ball of gas and plasma that emits heat and light