1. uchuu   star   universe   planet   asteroid   Hint Half-n-half Clue   2. juuryoku   gravity   universe   planet   solar system   Half-n-half Clue   3. eisei   satellite   star   universe   astronaut   Half-n-half Clue   4. uchuhikoushi   outer space   moon   galaxy   astronaut   Half-n-half Clue   5. uchuukuukan   star   astronomer   orbit   outer space   Half-n-half Clue   6. tenbungakusha   astronaut   Sun   astronomer   orbit   Half-n-half Clue   7. inseki   meteorite   Earth   planet   meteor   Half-n-half Clue