1. atmosfera   asteroid   astronomer   atmosphere   star   Hint Half-n-half Clue   2. cometa   star   satellite   astronomer   comet   Half-n-half Clue   3. pianeta   Sun   Earth   planet   universe   Half-n-half Clue   4. terra   Earth   meteor   atmosphere   Sun   Half-n-half Clue   5. satellite   solar system   satellite   atmosphere   planet   Half-n-half Clue   6. stella   moon   planet   comet   star   Half-n-half Clue   7. sistema solare   moon   astronomer   astronaut   solar system   Half-n-half Clue