1. chandramaa   light years   meteorite   astronomer   moon   Hint Half-n-half Clue   2. vaayumandal   light years   asteroid   atmosphere   astronaut   Half-n-half Clue   3. sooraj-mandalee   meteor   Sun   outer space   solar system   Half-n-half Clue   4. dhoomketu, pucchalataaraa   universe   star   comet   astronomer   Half-n-half Clue   5. gurutvaakarshan   planet   gravity   orbit   moon   Half-n-half Clue   6. ulkaa-pind   satellite   galaxy   star   meteorite   Half-n-half Clue   7. doorbeen   gravity   astronomer   telescope   comet   Half-n-half Clue