Alien chasers, who have been pointing out sightings of so-called alien beings, statues, buildings, fossils, and an array of other earthly objects in pictures beamed back from the Red Planet claim to have found the first evidence of alien craft - including a flying saucer.

The pictures in question were beamed back by the NASA Curiosity rover - a four-wheel-drive droid which is exploring the surface and taking pictures and rock samples.

One of the pictures, taken by the rover on November 3 and released online by NASA the next day, appears to show a mysterious dark object in the sky in the distance, which, when zoomed in on looks like a flying saucer, according to UFOlogists.

According to Scott C Waring, editor of UFO Sightings Daily, different pictures taken the same day show two dark objects in the sky.

He said: "I was looking at the newest Mars Curiosity Rover photos on their blog and noticed that there were some black objects in the sky.