1. ग्रह   comet   planet   universe   solar system   Hint Half-n-half Clue   2. वायुमण्डल   solar system   atmosphere   star   Sun   Half-n-half Clue   3. उल्का   meteor   galaxy   telescope   Sun   Half-n-half Clue   4. तारा   outer space   light years   solar system   star   Half-n-half Clue   5. चन्द्रमा   astronaut   comet   telescope   moon   Half-n-half Clue   6. उल्का-पिंड   meteorite   comet   star   moon   Half-n-half Clue   7. ग्रहपथ   asteroid   orbit   meteorite   light years   Half-n-half Clue