The video, captured on a motorway in Nevada, US, shows the moment one man made an outrageous discovery.
On the back of a truck being followed by a van marked “overload” appears to be a flying saucer.
It was spotted on Intersection 15 – a road that leads to the notorious Homey Airport and Groom Lake dubbed Area 51 by sky watchers.
The clip was originally uploaded to YouTube channel M Battle, but has gained popularity after being shared on conspiracy site thirdphaseofmoon.
“Probably being transported to Area 51 for immediate testing”
The video, which attempts to explain the strange event, has now racked up more than 22,000 hits.
And viewers were quick to share their thoughts.
One comment read: “As if the government would let us see their secret projects – it must have been for UFO day.”
Another added: “I think it’s a movie prop – if it was a real UFO they would have covered it up.”
But a third claimed: “Probably being transported to Area 51 for immediate testing.”
More than 40,000 Americans have taken out insurance against being abducted by aliens.
The footage comes after a “mothership spacecraft” was apparently snapped over London.
And before that, another bizarre object spotted on Google Earth split opinions.