A new UFO sighting photo has emerged taken from the International Space Station, one that shows an unusual image amidst the Aurora Borealis.

From a photo first uploaded by NASA, the UFO sighting was first identified on UFO Sightings Daily, with some purporting it to be an alien space craft, while others are far more skeptical.

"The UFO craft appears to be starting to or is using some type of cloaking devise," writes Scott Waring on his website.

But, according to the caption by NASA, no alarm was raised about this image.

"The Aurora Borealis, also known as "northern lights", is featured in this photograph taken by an Expedition 13 crew member on the International Space Station," says the caption on the NASA website.

But as with every UFO sighting, the image alone has caused great debate as to the nature of the distortion.

"Looks like gas," says 713cbarron on YouTube.

"Obviously a bird," inputs Surnixcams.

But others are far more amused than concerned about this supposed UFO sighting.

"Don't mind. It's only a Klingon ship," writes nicetubex.

This is not the first time a UFO sighting has been reported during an Aurora Borealis.

In this video uploaded onto YouTube last year, the uploader purports three separate UFO sightings within the images captured by the NASA Johnson Space Center.