1. astronaut   Satellit   Erde   Galaxie   Astronaut   Hint Half-n-half Clue   2. Sun   System Sonnen   Astronaut   Weltall   Sonne   Half-n-half Clue   3. astronomer   Weltall   Erde   Astronom   Atmosphäre   Half-n-half Clue   4. comet   Astronaut   Stern   Atmosphäre   Komet   Half-n-half Clue   5. Earth   Erde   System Sonnen   Asteroid   Atmosphäre   Half-n-half Clue   6. gravity   helle Jahre   Teleskop   Schwerkraft   Weltraum   Half-n-half Clue   7. star   Weltall   Schwerkraft   Mond   Stern   Half-n-half Clue