1. sistema solar   meteor   planet   gravity   solar system   Hint Half-n-half Clue   2. planeta   astronomer   gravity   planet   solar system   Half-n-half Clue   3. cometa   telescope   comet   universe   solar system   Half-n-half Clue   4. espaço sideral   outer space   astronaut   gravity   Earth   Half-n-half Clue   5. astrônomo   astronomer   star   moon   atmosphere   Half-n-half Clue   6. estrela   solar system   star   light years   astronomer   Half-n-half Clue   7. satélite   satellite   planet   Earth   moon   Half-n-half Clue