Across
- 2. an optical instrument designed to make distant objects appear nearer
- 4. A force that pulls matter together.
- 6. a system of millions or billions of stars
- 7. A place in space where matter and light cannot escape if they fall in
- 8. The stuff that everything is made of. Atoms are a tiny bit of matter. Big planets have lots of matter
- 9. all existing matter and space considered as a whole
Down
- 1. luminous point in the night sky which is a large body like the sun
- 3. a celestial body orbiting the earth or another planet
- 5. the planet on which we live; the world
- 8. dimensionless quantity representing the amount of matter in a particle or object