Across
- 1. I have tails, but I'm not an animal. I travel through space and grow brighter near the Sun.
- 3. I'm invisible but powerful, keeping planets in line.
- 6. I'm a god, a planet, and a measurer of heat.
- 7. I was once a planet, but now I'm not.
- 8. I birth stars but I'm not a mother.
Down
- 2. I'm a flash in the sky, quick and bright, but I'm not lightning.
- 4. I orbit a planet, but I'm not a satellite .I control tides, but I'm not the sea.
- 5. I'm a twin planet, but you can't live on me.