www.alphadictionary.com

an idle mischievous person; a reckless and unprincipled reprobate.

Both Kuragin and Dolokhov were at that time notorious among the rakes and scapegraces of Petersburg.

Just as in the goat word, scape here means "one who escapes from" the following bit. If I may, I'd like to suggest a movie title here, with a little juggling:

Spacescape.

An escape story set in space! Gee, wow! Get it?

Landscape wouldn't quite work here, as that one's already taken.

We could even do a dramatized documentary on Chilean miners: Minescape.