| A | B |
| observatory | a building containing telescopes and other equipment for observing bodies of space |
| solar system | a star and the planets and other bodies that revolve around it |
| galaxy | a group of millions of stars held together by gravity |
| universe | the whole of space and everything it contains |
| constellation | a pattern of stars in the night sky |
| nebula | a cloud of gas and dust particles in space |
| probe | a device sent into space to gather information |
| uproarious | causing loud and exciting laughter |
| punch line | the line carrying the point of the joke |
| impression | an imitation or mimicking intended to amuse |
| slapstick | rough comedy full of noisy activity or horseplay |
| guffaw | to laugh noisily |