The same approach has been used in ground-based experiments to beam one kilowatt of power over a distance of several kilometres, notes Peter Fisher, a physicist at the Massachusetts Institute of Technology.

ECONOMIST: Monitor

The beam was reported as coming from a sports ground in the Whipton area, on the other side of the M5 motorway from the airport, police said.

BBC: Green laser

Given the risks of aiming such a powerful beam of high-intensity radiation at an Earth ground station, as well as the cost of building billions of dollars in infrastructure to collect the energy in space, the efficiencies you can get from terrestrial solar power seem a safer bet--at least for now.

FORBES: Galactic Gold Mine?

As a demolition supervisor at ground zero, Feal was severely injured when an 8, 000-pound steel beam crushed his foot.

CNN: #Remember911: What to do now