1. lune   star   universe   moon   gravity   Hint Half-n-half Clue   2. années légères   comet   meteorite   orbit   light years   Half-n-half Clue   3. météore   meteor   gravity   light years   atmosphere   Half-n-half Clue   4. météorite   meteorite   moon   telescope   Earth   Half-n-half Clue   5. étoile   Earth   gravity   outer space   star   Half-n-half Clue   6. orbite   gravity   light years   orbit   asteroid   Half-n-half Clue   7. atmosphère   satellite   light years   atmosphere   comet   Half-n-half Clue