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Supernova Remnant W49B

Release date Dec. 30, 2009 In the supernova remnant W49B, Suzaku found another fossil fireball. It detected X-rays produced when heavily ionized …


Cassiopeia A supernova

NASA’s Fermi Closes on Source of Cosmic Rays New images from NASA’s Fermi Gamma-ray Space Telescope show where supernova remnants emit radiation …


Pulsar at the Crab Nebula

In 1054 AD, Chinese astronomers and others around the world noticed a new bright object in the sky. This “new star” was, …


Tycho’s Supernova

More than four centuries after Danish astronomer Tycho Brahe first observed the supernova that bears his name, the supernova remnant it created …