In 1987, light from an exploding star in a neighboring galaxy, the Large Magellanic Cloud, reached Earth. Named Supernova 1987A, it was the closest supernova explosion witnessed in almost 400 years, allowing astronomers to study it in unprecedented detail as it evolves.
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Astronomers using NASA's Chandra X-ray Observatory have detected X-rays emitted by the debris from the explosion of supernova 1957D.
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New data from NASA's Chandra X-ray Observatory suggest a highly distorted supernova remnant (shown here) may contain the most recent black hole formed in the Milky Way galaxy.
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Cassiopeia A, or Cas A for short, is one of the most well studied supernova remnants in our galaxy. But it still holds major surprises. […]
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