Alien alert? YouTuber spots dome-covered cave in Antarctica

A Google Earth freak believes that there is something bizarre going on in Antarctica. An eagle-eyed and self-proclaimed “Earth watchman” has made some shocking claims by saying that he has spotted an air vent over a “metallic shield” in a no-fly zone in Antarctica.

He has posted a video on his YouTube channel MrMBB333. The title of the video says – “HUGE Cave Opening Covered With an Iron Dome in Antarctica! – Appears to go DEEP Underground.”

According to MrMBB333, the area is more than 150 wide and this measurement is comes using the Google Earth tools. According to him, the two distinctive feature of this area are a pitch-black “opening” and a metal-like “shield.”

“That looks like some sort of vent, a thermal vent that goes underground. You can tell that the snow is darker than any other snow in the surrounding area,” he tells viewers. “That would imply to me that there is heat transfer going on” and suggests the top section is some metal or metal alloy man-made structure “over an opening that goes underground.”

He says that there is no volcanic activity nearby: “It is just there all by itself.” The video has caught the attention of many with 1,000 comments, mostly in support of the alien theory.

The video has received almost 1,000 comments — most in support of the alien theory.