1. luna   astronomer   orbit   astronaut   moon   Hint Half-n-half Clue   2. astronauta   Earth   comet   light years   astronaut   Half-n-half Clue   3. estrella   asteroid   gravity   orbit   star   Half-n-half Clue   4. sol   meteorite   astronomer   Sun   Earth   Half-n-half Clue   5. órbita   satellite   astronaut   meteor   orbit   Half-n-half Clue   6. universo   outer space   Earth   Sun   universe   Half-n-half Clue   7. astrónomo   astronomer   gravity   star   outer space   Half-n-half Clue