1. Earth   sole   astronomo   telescopio   terra   Hint Half-n-half Clue   2. moon   astronomo   luna   Spazio cosmico   atmosfera   Half-n-half Clue   3. orbit   orbita   pianeta   universo   anni chiari   Half-n-half Clue   4. asteroid   stella   asteroid   universo   astronomo   Half-n-half Clue   5. meteorite   luna   meteora   meteorite   orbita   Half-n-half Clue   6. star   astronauta   stella   pianeta   telescopio   Half-n-half Clue   7. atmosphere   atmosfera   pianeta   astronauta   universo   Half-n-half Clue