1. moon   orbita   cometa   meteora   luna   Hint Half-n-half Clue   2. planet   asteroid   galassia   meteorite   pianeta   Half-n-half Clue   3. satellite   orbita   meteora   telescopio   satellite   Half-n-half Clue   4. Earth   asteroid   terra   cometa   stella   Half-n-half Clue   5. star   meteora   cometa   gravità   stella   Half-n-half Clue   6. Sun   sole   orbita   sistema solare   asteroid   Half-n-half Clue   7. telescope   galassia   universo   pianeta   telescopio   Half-n-half Clue