Odd Circles Appear On The Surface Of Mars Leaving Astronomers Scratching Their Heads

Top scientist at NASA are left scratching their heads after a series of dark circles were spotted in new images from Mars.
A new batch of photos of the red planet were taken by NASA’s Mars Reconnaissance Orbiter. The new images included a good look at several sand dunes that appear to form into perfect circles on the surface of the planet.
The space agency released a statement explaining how “unusual” the phenomenon is.
“They are still slightly asymmetrical, with steep slip faces on the south ends. This indicates that sand generally moves to the south, but the winds may be variable,” NASA explained.
“This is part of a series of images to monitor how frost disappears in the late winter; this observation appears to be free of frost.”
Odd Circles Appear On The Surface Of Mars Leaving Astronomers Scratching Their Heads: NASA