A weird UFO filmed over London's river Thames on Sunday has caused quite a stir on the web, with many asking what it could be since it doesn't look like any other unidentified flying object ever filmed. Media outlets posted stories and commenters jumped aboard, all scratching heads.
Now the YouTube user, Space99Dude, has posted a second, enhanced version of the original UFO sighting which answers some questions, but poses a whole new round of queries. What is it?
To read more and view the video, click here.