Thomas Fuller | SOPA Images | Lightrocket | Getty ImagesTeraWulf stock rallied more than 10% after Google hiked its stake in the bitcoin miner and datacenter operator as it funds an expansion of its Lake Mariner, New York, facility.As part of the deal, Google will offer up to $1.4 billion in additional backstop, bringing its total to about $3.2 billion. It hikes Google's stake in TeraWulf to 14% from 8% and enables the company to buy about 32.5 million shares of the company's stock.CEO Paul Prag...