"..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. .."
A very rare, strange burst of extraordinarily bright light in the universe just got even stranger – thanks to the eagle-eye of NASA's Hubble Space Telescope.
