The radar signature meandered over southern Illinois for 10 hours on Monday.
It definitely wasn’t precipitation, the National Weather Service said.
But that seemed for days to be the only sure thing about the blob, which floated for nearly 140 miles before scattering into nothing after it crossed into western Kentucky.
So what was it?
Birds? Meteors?
The first volley of a coordinated campaign to distract military aircraft from alien sorties?
Chris Noles, a meteorologist at the National Weather Service outpost in Paducah, Ky., first observed the disturbance.
And it was … strange.
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