See SWNS story SWBRmarsdoor.
Is there a doorway on Mars?
Thats the question being asked by conspiracists online after NASA released a new picture taken by NASA Curiosity rover.
Snapped by the explorers Mast Camera (Mastcam) on Sol 3466 (7 May), the grainy image appears to show a cleanly-cut hole in a rockface.
There has been no official NASA explanation of the sighting, but that hasnt stop debate online about just what it shows.
One online user described the scene as a formation on Mars which appears to be a portal and a wall nearby that looks artificial, while another concluded swear to God, there's at least 5 Martians camouflaged in there.