aslong as a few full nodes where on some satellites moving around in the Solar system
Bitcoin is not wiped out just because the last node is shut down. As long as there remains a single copy of the blockchain + software somewhere, it's easy to bootstrap the network again. Confirmation times between the last node going down and the first one coming up again would be awful, though 
Remember the Voyager "Golden Record"? Burn a copy of the blockchain + software and launch it to deep space.
Or better yet, convince NASA it would be a good idea to put nodes on all the various planetary probes going up.