NASA obtained new information from the exploded Tycho Supernova, which was first seen from Earth in 1752. Photo courtesy of NASA Feb. 28 (UPI) -- A group of scientists has uncovered new information from a star that exploded more than 450 years ago, propelling particles to near the speed of light. Astronomers used NASA's Imaging X-ray Polarimetry Explorer to study the remains of a supernova called Tycho. They were able to discover how Tycho accelerates particles closer to the speed of light than any particle accelerator on Earth. "As one of the so-called historical supernovae, Tycho was observed by humanity...