1. telescopio   asteroid   astronomer   telescope   meteor   Hint Half-n-half Clue   2. meteorito   meteorite   astronomer   planet   orbit   Half-n-half Clue   3. galaxia   galaxy   light years   star   Sun   Half-n-half Clue   4. meteoro   solar system   planet   meteor   galaxy   Half-n-half Clue   5. universo   outer space   comet   satellite   universe   Half-n-half Clue   6. sistema solar   comet   meteor   asteroid   solar system   Half-n-half Clue   7. gravedad   orbit   atmosphere   gravity   satellite   Half-n-half Clue