1. astrónomo   astronaut   outer space   Sun   astronomer   Hint Half-n-half Clue   2. años luz   astronaut   Earth   light years   outer space   Half-n-half Clue   3. luna   moon   universe   Earth   galaxy   Half-n-half Clue   4. órbita   satellite   universe   orbit   outer space   Half-n-half Clue   5. Tierra   meteorite   star   Earth   comet   Half-n-half Clue   6. espacio exterior   orbit   moon   meteorite   outer space   Half-n-half Clue   7. galaxia   moon   meteor   solar system   galaxy   Half-n-half Clue