Scientists at Penn State just kicked off a two-year search for massive alien solar power stations known as Dyson Spheres.

ENGADGET: Inhabitat's Week in Green: Dyson Spheres, bladeless wind turbines and airless bike tires

It also can throw a monkey in solar and wind developers efforts to obtain state approvals for their projects and scare off bankers and investors needed to finance what are often multibillion-dollar solar power plants and wind farms.

FORBES: Obama Administration to Put Solar and Wind Lands off Limits to Mining