Slate’s open thread for the week of Oct. 9.

Supernova 1604, in This Week’s Open Thread

Supernova 1604, in This Week’s Open Thread

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Oct. 9 2017 12:00 AM

Supernova 1604

Join Slate’s open thread for the week of Oct. 9

171009_OPEN_Supernova
On October 9, 1604, sky watchers -- including astronomer Johannes Kepler, spotted a "new star" in the western sky, rivaling the brilliance of nearby planets. "Kepler's supernova" was the last exploding supernova seen in our Milky Way galaxy.

NASA/Wikimedia Commons

Today marks the 413th anniversary of Kepler’s supernova. You may use the comment thread on this page to remark upon the significance of this astronomical event or to pursue other points of off-topic, freewheeling discourse.

Find previous discussions in the Open Thread archive.

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