1. stella   Earth   star   comet   galaxy   Hint Half-n-half Clue   2. telescopio   telescope   moon   meteorite   astronaut   Half-n-half Clue   3. sistema solare   asteroid   galaxy   solar system   planet   Half-n-half Clue   4. universo   universe   light years   outer space   orbit   Half-n-half Clue   5. astronauta   Earth   astronaut   moon   asteroid   Half-n-half Clue   6. atmosfera   atmosphere   telescope   Sun   star   Half-n-half Clue   7. astronomo   orbit   astronomer   solar system   asteroid   Half-n-half Clue