We do not know.
But from the images taken by Curiosity surely there is "light".
NASA's Curiousity rover brought into question conventional Martian mystery, capturing some photographs of the mysterious flash of light.
Though in this case we can not speak of flying objects, the inexplicable light has aroused great interest among UFO fans.
Scott C. Waring, who is the webmaster of the blog UFO Sightings Daily, posted the photo on April 6. From the picture it seems that the light shines upward, as if it came from the ground. According to ufologist "This could indicate that there is intelligent life below the ground and uses light as we do."
The space agency has not issued any official statement about the phenomenon yet.
This is not the first time that a picture from Mars is misunderstood. A famous event was the "Face on Mars".
On 25 July 1976, the Viking 1 released an image of a region called Cydonia that seemed to show a human face on the Red Planet.
In reality it was nothing more than a phenomenon known as pareidolia, in which the human brain detects faces in an object, in this case a natural looking Martian hill whose illusory face-like appearance depends on the viewing angle and angle of illumination.
|In 2006, the Mars Reconnaissance Orbiter (MRO) has taken over the same region and showed that the sand had continued to move, deleting the 'face' of the surface.|