1. meteor   ryuusei   uchuhikoushi   shouwakusei   tenbungakusha   Hint Half-n-half Clue   2. galaxy   ryuusei   suisei   bouenkyou   gingakei   Half-n-half Clue   3. universe   tsuki   tenbungakusha   hoshi   uchuu   Half-n-half Clue   4. asteroid   kounen   juuryoku   suisei   shouwakusei   Half-n-half Clue   5. meteorite   uchuukuukan   taiyoukei   inseki   uchuu   Half-n-half Clue   6. astronaut   uchuhikoushi   juuryoku   hoshi   uchuukuukan   Half-n-half Clue   7. outer space   taiyoukei   juuryoku   uchuukuukan   kounen   Half-n-half Clue