Footage of what some believe to be a bizarre "megaship" was captured on a live NASA feed by a International Space Station (ISS) camera, reports say.
The mysterious bright object was spotted by Youtuber StreetCap1, who uploaded screenshots and portions of the feed to the streaming platform later last week.
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"I thought I was seeing things. I had to be quick," the uploader captioned under the video.
The "megaship" was allegedly captured on tape right before NASA reportedly dimmed the live feed.
"The dimming at the end was sudden and my guess is they [NASA] turned down the brightness a little."
In the two-minute clip, a "cigar-shaped" object many believe to be a UFO appeared to hover above Earth's horizon as a few bright reflective orbs were positioned below it.
"We definitely see some anomalous objects. We have this very long cigar-shaped UFO. It's unidentified, we don't know what it is," Glockner said.
"And then below it, we have these two reflective-looking orbs or objects that are obviously under very low resolution because Nasa likes to give us low res videos and keep the high resolution stuff to themselves."
Glockner, who says he has monitored hundreds of ISS live feed footage, believes he has spotted UFOs on several occasions.
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But he is doubtful that the object in the video that has left hundreds concerned is a UFO.
"What we're seeing here looks like none of those," Glockner says.
However, he remains open to the possibilty of NASA tampering with the live feed.
"It would appear that shortly after these objects come into view, NASA - either purposely - or the UFOs do it on their own, but the objects quickly dim out," Glockner said.
"So we may have had NASA dimming the feed, messing with the contrast or the exposure to make these objects disappear from view."