When the Dyna-Soar Went Extinct: We all know that 65.5 million years ago an asteroid slammed into the Earth off the coast of the Yucatán Peninsula and wiped out the dinosaurs. But there’s another dinosaur (of sorts) that died a little more recently. The U.S. Air Force’s Dyna-Soar, a precursor to the space shuttle, was wiped out by bureaucracy and bad timing.
