1. telescopio   gravity   Sun   comet   telescope   Hint Half-n-half Clue   2. universo   universe   planet   solar system   astronomer   Half-n-half Clue   3. años luz   Sun   orbit   atmosphere   light years   Half-n-half Clue   4. asteroide   meteor   asteroid   comet   star   Half-n-half Clue   5. astronauta   gravity   light years   galaxy   astronaut   Half-n-half Clue   6. órbita   star   meteorite   orbit   universe   Half-n-half Clue   7. planeta   atmosphere   meteorite   planet   astronomer   Half-n-half Clue