1. Sun   sistema solare   sole   stella   terra   Hint Half-n-half Clue   2. telescope   atmosfera   galassia   telescopio   meteora   Half-n-half Clue   3. asteroid   terra   telescopio   asteroid   anni chiari   Half-n-half Clue   4. universe   atmosfera   meteora   sole   universo   Half-n-half Clue   5. meteor   asteroid   pianeta   universo   meteora   Half-n-half Clue   6. galaxy   galassia   astronauta   universo   sistema solare   Half-n-half Clue   7. satellite   astronomo   meteora   atmosfera   satellite   Half-n-half Clue