On August 28th, 2017 there were multiple reports and videos of a strange sphere hovering over Los Angeles.

When you first see the sphere, you notice it's not really moving, there's nothing hanging off of it and it's really large. When a helicopter flies along side it, you really can tell how big it is.

This UFO sighting is actually really easy to explain, as it's nothing more than a balloon that was an advertisement for a company called “Brass Knuckles,” which sells marijuana extracts and vaporizing products.