1. anni chiari   telescope   light years   moon   gravity   Hint Half-n-half Clue   2. galassia   galaxy   comet   asteroid   astronaut   Half-n-half Clue   3. gravità   asteroid   gravity   astronomer   Sun   Half-n-half Clue   4. meteora   comet   meteor   telescope   orbit   Half-n-half Clue   5. cometa   solar system   comet   universe   outer space   Half-n-half Clue   6. meteorite   Sun   planet   satellite   meteorite   Half-n-half Clue   7. terra   galaxy   solar system   Earth   orbit   Half-n-half Clue