Today's Apod
This so belongs on an Analog cover!
https://apod.nasa.gov/apod/ap170329.html
Also posted at http://ffutures.dreamwidth.org/2064099.html, where there are
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https://apod.nasa.gov/apod/ap170329.html
Also posted at http://ffutures.dreamwidth.org/2064099.html, where there are