1. galaxia   Earth   solar system   galaxy   orbit   Hint Half-n-half Clue   2. satélite   star   planet   solar system   satellite   Half-n-half Clue   3. planeta   planet   Sun   universe   solar system   Half-n-half Clue   4. gravedad   atmosphere   Sun   gravity   planet   Half-n-half Clue   5. sistema solar   solar system   astronaut   astronomer   light years   Half-n-half Clue   6. años luz   galaxy   light years   moon   star   Half-n-half Clue   7. telescopio   gravity   solar system   Earth   telescope   Half-n-half Clue