Hi Hans,
There will be people out there believing that Krypton actually existed.
I have seen and heard all kinds of nonsense of what people believe.
For example: I was in LA some years ago, doing a tourist bus tour through Hollywood area. Ref: Pretty Woman movie. The shop staff that refused to serve Julia Roberts. People complained to the management of that shop and gave them hell. "Why did you not serve Julia Roberts in her hour of shopping need?"
Its true. These people could not distinguish realism from movie fiction.
The owner of that shop paid thousands to change the front so that people no longer related it to the movie.
I now assume a similar issue will come to light about "Krypton".
"Wow, Superman is real! They found where Krypton used to be near that red sun."
Let's see what developes.
Cheers