1. telescopio   telescope   asteroid   galaxy   orbit   Hint Half-n-half Clue   2. espacio exterior   astronomer   outer space   satellite   universe   Half-n-half Clue   3. estrella   star   atmosphere   telescope   Sun   Half-n-half Clue   4. universo   outer space   universe   star   astronomer   Half-n-half Clue   5. asteroide   atmosphere   meteor   galaxy   asteroid   Half-n-half Clue   6. cometa   outer space   comet   astronomer   Sun   Half-n-half Clue   7. astronauta   astronaut   asteroid   outer space   Sun   Half-n-half Clue