Flights averted due to a UFO...

[heartc]

Found the vid again here:



Looks pretty much like a (two or more stage) rocket shot to me, viewed from long range.

The dust trail is so broad because while the sun is below the horizon, its rays are still going through the upper atmosphere, which makes any reflective object (or gasses) lit up by them look extremely bright and visible against the dark sky. You wouldn't see that kind of tail in daylight against a blue sky.