1. moon   astronomo   anni chiari   telescopio   luna   Hint Half-n-half Clue   2. Earth   satellite   astronauta   terra   anni chiari   Half-n-half Clue   3. astronaut   terra   sistema solare   asteroid   astronauta   Half-n-half Clue   4. satellite   satellite   asteroid   stella   galassia   Half-n-half Clue   5. outer space   luna   Spazio cosmico   satellite   galassia   Half-n-half Clue   6. light years   sole   astronomo   anni chiari   telescopio   Half-n-half Clue   7. meteorite   meteorite   atmosfera   sole   terra   Half-n-half Clue