On June 1, 2018, a video was posted on YouTube, filmed the day before in Huntsville, Alabama. The shooting was carried out from the car and the video is a little shaky, however, it clearly shows something that resembles a kind of spatial portal, as it is shown in science fiction films:
Portal scan at maximum magnification:
The video is now being actively discussed at the ameroblogodrome, however, people seem to be a little shocked by what they saw, and no one has a clear explanation for what was filmed by the camera. Some believe that this is a UFO portal, others believe that the government is thus testing the secret Blue Beam system, which generates holographic illusions in the atmosphere.
It is possible that Nathan B, the YouTube user who commented on this video, sheds some light on what is happening:
I saw one of these over Colorado ten years ago. A cigar shaped UFO flew thru it and then it closed shut. One of our military copters was on the scene and witnessed it too
I saw something like this in Colorado about 10 years ago. A portal appeared and a cigar-shaped UFO penetrated through it, which immediately disappeared. Then one of our military helicopters arrived in the area.
Promotional video:
Based on one video, it is very difficult to say what it was, especially since we have all seen spatial portals only in science fiction films, in fact, no one knows how such portals look. However, Nathan B's explanation for this seems to be the most plausible.
Since the portal was quite bright and attracted attention, more videos of this object are likely to appear on the network soon. In this case, there will be much more information for analysis.