A man used his camera phone to record a giant fireball in the sky.
He's not sure what it was, but plenty of other people are willing to take a guess.
"I just happened to catch something out of the corner of my eye," Bruce York said.
He said he was just driving along Route 26 at 5 p.m., when he noticed what looked like a fireball in the sky.
He grabbed his mobile phone and started recording.
"It didn't look like anything that I've ever seen before," York said. "It didn't look like any footage I've ever seen of a meteorite or a comet. It just struck me as odd."
He captured video of the strange happening for a little more than two-and-a-half minutes.
He posted it to Facebook and Youtube, and so many people are interested that, in two just days, 16,000 people have viewed it from as far away as Slovakia, California and Canada.
© Bruce York/WMTW/CNNPeople are speculating on what the fireball might be.
"People said it could be space junk. It could be a contrail from an airplane. It could be fuel dump, an airplane dumping fuel," he said.
"I really don't dare to wager one way or another what it is. I really don't," York said. "I just, I'm hoping somebody will contact me and say 'OK, Here's what happened. Here's what he caught on video.'"
An answer came late Wednesday afternoon from Edward Gleason, staff astronomer at the Southworth Planetarium at the University of Southern Maine.
Gleason viewed the clip and said he couldn't rule out a meteor but said if he had to guess, it looks like "space junk," or pieces of a satellite breaking up and falling to earth.
Looks like a contrail but even so it is very slow which suggests the jet is moving directly away and even ascending to appear so slow. Certainly it is not a meteor or space junk which would be travelling at high speed. Again we have a time of 5 pm so the Maine sun would be getting towards the horizon (I assume local time). Un fortunately I do not see a location but there is Portland International Jetport to the south of Route 26 which mostly runs South to NW so the jet probably came from there and from the contrail smoke, low speed and potential ascent (afterburners?) I would guess the location of the video would be In the Falmouth to Gray region, perhaps West of Cumberland.. best est.