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