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City-size, cold-volcano comet transforms into a glowing 'snail shell' after major explosive outburst

Following a massive cryovolcanic eruption, the mysterious Comet 29P/Schwassmann-Wachmann has been morphed into a giant spiral and is now shining 100 times brighter than normal.
The Daily Galaxy on MSN

Comet 29P explodes and turns into a glowing spiral that stuns scientists

Wachmann, a cold-volcano comet that has long intrigued astronomers, recently became the focus of a stunning discovery. After ...