Pentagon officials have been talking for years about weaning their jets off of fossil fuels. Now they say they’re only months away from producing a cheap fuel made from algae — for less than $3 a gallon. In addition to the Pentagon, several airlines have been publicizing efforts to produce alternatives to traditional jet fuel. But other than a few publicity efforts, there has been very little... 

The Pentagon’s scientific fringe want to fast-track the quick and easy repair of wartime wounds, by eliminating one of the most important elements of tissue engineering – and replacing it with magnetic fields. Last year, Darpa-funded researchers successfully generated human muscle tissue, and the agency requested proposals for a device that could pump out new body parts made with adult stem...