For all intents and purposes, vanished, I do plan to have it show up later, but not at the current moment.
Earth has vanished for so long that they literally don't even know Earth as a word.
Here's a question then. If Earth has been gone for so long that humanity doesn't even know of it as a word(Going to skip right on by how ridiculous that sounds), what is the significance of it re-appearing? Surely if it has been gone for so long, then it coming back would really not be that big of a deal.
"Some planet was just discovered, they call it Earth. Apparently people came from there at some point."
"Earth, huh? Never heard of it. What's so important about these asshats?"
"Have no idea, I say we waste them."