Rain of Blood.

Nope, I'm not talking about a Slayer song. I'm talking about this news story in which blood-like cells are falling from the skies... in the tons. In India, some scientists think that they have found alien life. They first thought that these impressive cells, which withstand excessive heat, radiation, and reproduce even though they seem to have no DNA, survived inside a meteor and were released in the atmosphere where they hung out until they were rained down.
Now, they are retracting their story in part.

Aparently, this is not the first time blood (or something else that is strange) has be reported to rain down.