Tech firms are willing to spend big to power the massive data centers they use to run artificial intelligence applications.

Three Mile Island, the dormant Pennsylvania nuclear plant at the center of the Microsoft deal, became "shorthand for the risks posed by nuclear energy after one of the plant's two reactors partly melted down in 1979,

Three Mile Island, a nuclear power plant, has been closed for five years. Now, it's set to reopen by 2028 to power Microsoft's data centers.