NASA engineers stare at the sun to see shockwaves from supersonic flight

 Before the eclipse this summer, NASA warned us over and over again not to stare directly at the sun — but now they’re doing just that. Its researchers have reinvented a photography technique more than a century old, using the sun itself as a backdrop in order to capture the shockwave produced by a new supersonic jet. Read More

http://ift.tt/2CCh86F

read more "NASA engineers stare at the sun to see shockwaves from supersonic flight"