Mysterious portal appears above the Arabian Sea

Two days ago the ISS live stream captured an unknown object that suddenly appeared above the Arabian Sea. 

The strange object not only turns into a what looks like a portal or planet but it rotates and it moves through space until it slowly disappears again. 

Could this object be an interdimensional portal that gave a glimpse of a parallel universe or could it have been a UFO or a small celestial body that cloaked and uncloaked itself? 

While is unknown what the object may have been, one commenter questioned: "Could the ISS be layering an image to block out any UFO we may see and that was a spot that the real view got thru? 

Whatever it was, it remains a mystery what exactly happened above the Arabian Sea. 
Take a look at the strange appearance: