[@Sapphire]
Damn, not sure if I should take that one as a compliment or not.

Nova in his current incarnation is weakened, and would not be able to survive a nuclear explosion at ground zero. He would, however, be able to port out before it hit him, or prevent it from happening by telekinetically disarming the bomb. This version has weakened abilities, mainly on the front of his time and space-altering abilities. However, he's still incredibly versatile, and has access to the Golden Throne thanks to the Kolons.