sky history
Just 670 years ago, this supernova burst into the night sky
A spectacular explosion became visible on Earth during the Middle Ages.
Updated:
Originally Published:
NASA/CXC/D. Berry; NASA/STSci/Hubble; ESA/M. Kornmesser
When stars die, some explode into supernovas and leave behind shimmering remnants — many of which we’ve observed via telescope.
Supernova remnants often conceal the finer details of their origins within clouds of cosmic dust.
It’s not easy to tell how long ago a supernova explosion began, but sometimes telescope records can illuminate the past.
NASA/CXC/D. Berry; NASA/STSci/Hubble; ESA/M. Kornmesser
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