1. Atmosphäre   planet   Earth   atmosphere   astronomer   Hint Half-n-half Clue   2. Weltall   Sun   orbit   solar system   universe   Half-n-half Clue   3. Planet   gravity   planet   outer space   asteroid   Half-n-half Clue   4. Komet   star   galaxy   astronaut   comet   Half-n-half Clue   5. Satellit   light years   satellite   telescope   planet   Half-n-half Clue   6. Erde   Earth   gravity   meteorite   atmosphere   Half-n-half Clue   7. Meteorit   moon   meteorite   light years   comet   Half-n-half Clue