The footage – taken in the US state’s capital – shows what appears to be a triangular object hovering in the skies.
It stays completely stationary and makes no noise but bright lights show its shape.
YouTube channel TexasUFOs were sent the footage and asked: “What do you think this video shows?
“An alien or a top-secret military spacecraft?
“100% a TR-3B”
“The witness has followed up to say they don’t think it could be a drone due to how silent it was.”
The “military spacecraft” mentioned could point towards the infamous TR-3 Black Manta.
While it has never officially been acknowledged by the United States Air Force, conspiracists believe the government is developing the triangular-shaped spy plane under a black project.
There have been numerous supposed sightings in recent months – all of which bear similarities to the one seen over Austin.
Renowned conspiracist Tyler Glockner – of YouTube channel secureteam10 – picked up the video and it has since been seen more than 125,000 times.
“100% a TR-3B,” one commented.
Another wrote: “These are military crafts.
“I have seen some videos where they accepted that they were testing triangular crafts but it is not revealed to the public.”
A third agreed, adding: “In my view, it could easily be the TR-3B.”
Others weren’t as convinced, suggesting the sighting was either a drone or a kite with lights attached to it.