1. xing   star   meteor   planet   meteorite   Hint Half-n-half Clue   2. yu hang [yuan]   solar system   satellite   astronaut   Sun   Half-n-half Clue   3. tian wen xue [jia]   astronomer   comet   outer space   asteroid   Half-n-half Clue   4. tai yang [xi;ji]   outer space   astronomer   solar system   Sun   Half-n-half Clue   5. yu zhou   universe   astronaut   moon   outer space   Half-n-half Clue   6. xiao [xing;hang] xing   asteroid   light years   satellite   galaxy   Half-n-half Clue   7. wang yuan jing   light years   solar system   telescope   galaxy   Half-n-half Clue