Puzzle 8-3

In this level you must eliminate a skunk and give the scientist something to see out of his telescope.
Words that work are:
*Star
*comet
*meteor (as long as it doesn't explode)
*martian
*alien
*Moon
*Sun
*Rainbow
*space shuttle
*UFO
*Aurora borealis
*Venus
*Earth
*Mars
*Jupiter
*Saturn
*Pluto
*galaxy
*Full moon
Words that surprisingly don't work are:
*Black Hole
*Astronaut
*Ceiling Cat