Across
- 3. detects radio waves from space
- 6. the Sun
- 7. astronomer, economist
- 10. Malaysian satellites
- 11. modified the heliocentric model
- 14. model with Sun at the center and circular orbits
- 15. a geographer
Down
- 1. deliver satellites to space
- 2. first human to set foot on the moon
- 4. model with Earth at the center and circular orbit
- 5. Malaysian's first microsatellite
- 8. spacecraft that gathers information and send back to Earth
- 9. first satellitete
- 12. move or cause to move in a circle round an axis or centre
- 13. measure the altitude of stars