1. astronomo   telescope   asteroid   astronomer   meteorite   Hint Half-n-half Clue   2. luna   light years   moon   comet   asteroid   Half-n-half Clue   3. meteora   meteor   universe   planet   outer space   Half-n-half Clue   4. orbita   orbit   asteroid   gravity   universe   Half-n-half Clue   5. meteorite   astronomer   meteorite   light years   atmosphere   Half-n-half Clue   6. universo   universe   solar system   moon   atmosphere   Half-n-half Clue   7. galassia   astronomer   astronaut   galaxy   orbit   Half-n-half Clue