Ebers : confined to one planet in 2300 , they once had an interstellar civilization with a presence on at least three other planets .
All that is left of them on those planets are ruins from a destructive war .
Ebers : confined to one planet in 2300 , they once had an interstellar civilization with a presence on at least three other planets , although all that is left of them on those planets are ruins from a destructive war .