Kepler's Supernova Remnant received some attention from NASA on May 15th, 2013 due to the x-ray data and photographs from the orbiting Chandra X-Ray Observatory. It had long been speculated of what kind of supernova it was. First observed by Johannes Kepler in 1604, a brighter-than-normal star appeared in the night sky in the constellation Ophiuchius and only the second supernova to be observed (the first being the supernova in Cassiopeia by Tycho Brahe). It nas now been revealed that Kepler's Supernova Remant is a Type Ia supernova, previously being a white dwarf star that had sucked in too much material from a companion red giant. This supernova is about 13,000 light-years away and is known as the most recently observed supernova.
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