Image: Chandra's view of the Tycho Supernova remnant
Friday, July 25, 2014 - 06:30
in Astronomy & Space
More than four centuries after Danish astronomer Tycho Brahe first observed the supernova that bears his name, the supernova remnant it created is now a bright source of X-rays. The supersonic expansion of the exploded star produced a shock wave moving outward into the surrounding interstellar gas, and another, reverse shock wave moving back into the expanding stellar debris.