Across
- 3. the most distant spacecraft from earth
- 4. A planet without moon
- 8. the dog star
- 9. Absorbs the Ultraviolet radiation from the sun
- 10. Gave the laws of planetary motion
Down
- 1. has longer wavelength than visible light
- 2. Protects the earth from solar storm
- 5. is the third largest galaxy in our local group
- 6. powers the sun
- 7. NASA's X-ray telescope