1. Umlaufbahn   satellite   orbit   telescope   solar system   Hint Half-n-half Clue   2. Astronom   astronomer   outer space   planet   Earth   Half-n-half Clue   3. Weltraum   astronaut   gravity   outer space   astronomer   Half-n-half Clue   4. Planet   galaxy   outer space   planet   comet   Half-n-half Clue   5. Galaxie   star   galaxy   satellite   telescope   Half-n-half Clue   6. Satellit   satellite   light years   outer space   gravity   Half-n-half Clue   7. Schwerkraft   outer space   astronaut   galaxy   gravity   Half-n-half Clue