Kepler's Supernova Remnant

A supernova is an exploded star. This particular explosion was first observed by people on Earth on October 9, 1604. Famous astronomer Johannes Kep

Cassiopeia A: An Exploded Star

What you see in the pictures are expanding waves of star material after the explosion. The explosion occured about 11,000 years away in our own Mil

Supernova Remnant Menagerie

Location Our Milky Way galaxy is orbited by a satellite galaxy called the Large Magellanic Cloud (LMC). Inside that