1. Tierra   solar system   Earth   gravity   moon   Hint Half-n-half Clue   2. telescopio   Earth   telescope   galaxy   solar system   Half-n-half Clue   3. meteoro   meteor   satellite   telescope   moon   Half-n-half Clue   4. luna   outer space   gravity   universe   moon   Half-n-half Clue   5. meteorito   meteorite   Sun   astronomer   star   Half-n-half Clue   6. órbita   Earth   orbit   asteroid   solar system   Half-n-half Clue   7. galaxia   moon   galaxy   meteorite   atmosphere   Half-n-half Clue