Kepler’s Supernova


In 1604, astronomer Johannes Kepler noticed a new bright object in the sky that was visible to the naked eye for the next year-and-a-half. He was seeing a supernova, the death of a star more than ten times the mass of our Sun that was 20,000 light years from Earth. This false color animation shows the remnant of Kepler’s Supernova, first in infrared, then visible light, then low energy x-rays, then high-energy x-rays, and finally all four together.

Video Credits: NASA / ESA / STScI

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