1: Force that pulls what everything is made of together – GRAVITY
3: Space agency – NASA
6: Bright explosion of a star – SUPERNOVA
7: Small or large rocks floating in space – ASTEROID
9: When a celestial object blocks the light of another celestial object – ECLIPSE
10: Large hole – CRATER
12: Icy rock flying through space letting off dust and gas – COMET
13: Large group of stars held together by gravity – GALAXY