Does get a bit annoying really, I've got 900000 credits but need to scan stuff for resources. Couldn't I just buy them?
Best thing to do is put some good music on and just scan for a while.
I am surprised that you cannot buy the resources, surely there have to be intergalatic mining companies that you can wholesale buy off. Considering how many planets you would need to strip to get every research its not like you wouldn't be bulk buying.