A mysterious greenish-yellow goo that fell from the sky has splattered homes in Snyder, N.Y., and triggered investigations by the FAA and the town's waste engineer. 

 

Most of the houses along Washington Highway and Berryman Drive have taken down their Christmas lights, but are now sporting green or yellow icicles. The sides of houses are splashed with a deep brown substance and sidewalks are also spotted with the stuff.

Residents say the material appeared between 9 a.m. and midnight last Tuesday.