Mars is a dry, cold deserted wasteland. The atmosphere existing on the planet is so thin that even water cannot exist exist on the surface. However, as per report, some Alien enthusiasts are claiming to have discovered photographic evidence that Mars may have had green vegetation at some point of time. Curiosity rover on Sol 164 snapped an image which showcases what looks like an ancient tree stump, about 3-feet high on Mars as NASA released the image recently.br br ----------------------------------------------------------------------------------------------------------br Subscribe to OneIndia News Channel for latest updates on movies and related videos.