Advanced Space-themed Crossword Puzzle
 
Listed Items
- 1.  Force that pulls objects toward each other
- 2.  A strange object that is seen in the sky
- 3.  A device to see distant things
- 4.  A blocking of light from the sun or moon
- 5.  The entire physical realm and all of its contents
- 6.  A planet that is the third closest to the sun
- 7.  A heavenly body that emits light and heat
- 8.  A creature from outer space