Seems like we're being bombarded with UFO news in the past 2-4 weeks, eh?
It's the prelude to
Destroy All Monsters. Remember, aliens used Ghidorah to try to destroy the earth, and they'd pick up the pieces. This is why we need GODILLAAAHHHHH!!!!!! That big lovable reptile with the cute, boopable nose. Oh wait, that's me!! Tee hee