in order to be prepared for any catastrophic event on Earth.
what kind of catastrophic event are we talking about here that could lead to annihilation of all nodes on earth worldwide that we need a space node?!! and what would we need that if the human race is extinct, or is it just extinction of computers on earth 
Dunno what the OP is thinking but if we go back to the stone age after a cataclysm probably we would want to save some other things first....even porn would be a priority.
LOL
Lets get people using it on Earth first before you worry about the other planets.
Lets get people using it on Earth first before you worry about the other planets.
You know it's easier to dream of space travel and teleportation than taking the trash out or cleaning the cat box, right?
But yeah, if the world gets into a nuclear war, half of the population is killed, my town is erased, there is no food no water no electricity no nothing,I sure want the blockchain to be safe in space, it will bring me such joy!!!
But even if we manage to send some nodes into spaces, we have a bigger problem in just 4 billion years Andromeda is going to collide with the Milky Way....has anyone a solution so that the chain survives, cause if none is found quick maybe we'll see another dump!!!