1. galaxia   Sun   comet   planet   galaxy   Hint Half-n-half Clue   2. astronauta   solar system   atmosphere   asteroid   astronaut   Half-n-half Clue   3. Tierra   light years   astronaut   Earth   star   Half-n-half Clue   4. planeta   solar system   orbit   gravity   planet   Half-n-half Clue   5. años luz   moon   planet   light years   Earth   Half-n-half Clue   6. asteroide   asteroid   universe   atmosphere   satellite   Half-n-half Clue   7. astrónomo   Sun   universe   astronomer   telescope   Half-n-half Clue