GK Persei is a mini supernova that astronomers observed exploding in 1901. In 2000, NASA’s Chandra X-ray Observatory began following its explosive progression.
From NASA’s recent article, “Mini Supernova” Explosion Could Have Big Impact, it states:
This new image of GK Persei contains X-rays from Chandra (blue), optical data from NASA’s Hubble Space Telescope (yellow), and radio data from the National Science Foundation’s Very Large Array (pink). The X-ray data show hot gas and the radio data show emission from electrons that have been accelerated to high energies by the nova shock wave. The optical data reveal clumps of material that were ejected in the explosion. The nature of the point-like source on the lower left is unknown.
For me it looks like a giant fireworks display. Also it’s fascinating how when things explode they do so in a 3 dimensional mandala-like way.
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