
Tail?
Looks more like a big rocket exhaust to me.
Astronomers have announced evidence that a main-belt asteroid called 493 Griseldis took a hit from another object in March of this year. Shots taken by the Subaru 8m optical telescope showed that Griseldis had grown a tail – and unlike a comet's tail, which points away from the sun, the asteroid's tail was “not in the …
".....indicated a mass of flaming gas, chiefly hydrogen, moving with an enormous velocity towards this earth. This jet of fire had become invisible about a quarter past twelve. He compared it to a colossal puff of flame suddenly and violently squirted out of the planet, "as flaming gases rushed out of a gun.""
H.G. Wells. The War of the Worlds.