1. gravity   Schwerkraft   Meteorit   Planet   Atmosphäre   Hint Half-n-half Clue   2. planet   Satellit   Stern   Teleskop   Planet   Half-n-half Clue   3. solar system   Planet   System Sonnen   Mond   Atmosphäre   Half-n-half Clue   4. universe   Meteor   Schwerkraft   Weltall   Umlaufbahn   Half-n-half Clue   5. astronaut   Astronaut   Teleskop   Planet   Mond   Half-n-half Clue   6. light years   Astronom   Astronaut   helle Jahre   Atmosphäre   Half-n-half Clue   7. asteroid   Asteroid   helle Jahre   Galaxie   Teleskop   Half-n-half Clue