Comment It looks like a sprite... (Score 1) 825
Considering that ocean covers 75% of our planet I think there are a LOT of things us silly monkeys don't understand about the dominant environment on this planet. It looks like something either shot down or was sent to space or something else along that line. I'd check to see if there are any satelite pics that were taken at the same moment and see if it was one of those ball-lightning 'sprites' or if something entered the atmosphere from that trajectory.
The shadowy 'streak' seems to be some sort of light at a wavelength we can barely see. I'd say it was a streak of carbon from something from space like space-junk or a small meteor but the streak doesn't seem to dissipate with the weather. It looks like some form of light since it's a straight line as opposed to a smoking streak of something...there's my 2 cents...LET THE BASHING BEGIN!