If you look at the universe and space tags you'll immediately notice that except for one or two of the questions the rest either has wrong tags, are closed or else are hugely down-voted (by the way, this is a good moment to take a look and vote to close some of them).
Now, I wonder what's the best strategy to go about these tags? Personally I'd remove the space tag completely (because space, in its most concrete meaning is either just a mathematical or a philosophical concept. No physics in that).
As for universe, I am inclined to let it stay (in connection with cosmology and astrophysics).
So, what do you think we should do with them?