'Mysterious' blip of light on Mars sparks wild UFO theories

A photograph of Mars sent by Curiosity rover, which features an apparent blip of light on the horizon has sparked people's interest with UFO enthusiasts speculating that it could be an artificial light source.

Rover's right navigation camera clicked the image. A close-up of the light makes it look like it has a flat bottom and rises upward, where it dissipates, CNET reported.

Doug Ellison, visualization producer at NASA's Jet Propulsion Laboratory, wrote on his Twitter account "It's not in the left-Navcam image taken at the exact same moment. It's a cosmic ray hit.