coreyspowell, 
I love a science mystery, and this is a good one:
About once a year, a mysterious blue flash appears from a different part of the sky, then fades in a matter of days. Nobody knows what these things are. And the latest one, nicknamed "the Finch," may be the strangest one yet.
https://science.nasa.gov/missions/hubble/nasas-hubble-finds-bizarre-explosion-in-unexpected-place #science #astronomy #astrodon
