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Eagle-eyed space enthusiasts, obsessed with the prospect of past or present life on Mars, have spotted what they believe could be the remnants of a tree on the red planet. The image – taken by NASA’s Mars rover Curiosity on March 25 – appears to show an oddly-shaped structure resembling a three-foot-tall petrified tree stump.
Mars is a dry, cold deserted wasteland with an atmosphere so thin, liquid water is unable to exist on the surface. However, alien hunters claim to have found evidence that the Red planet may have once been lush with green vegetation – 'the petrified remnants of a Martian tree'. In an image snapped by the Curiosity rover on Sol 164, some have suggested there is an ancient tree stump that stands about three feet high, which they say means a variety of plants 'either existed or still exist' on Mars.
originally posted by: tigertatzen
What if it's not petrified at all?
it certainly doesn't look like anything I've seen before on Mar's surface.
•The science: Science has solved the riddle posed by the Pinnacles: they were formed from limestone-rich sand, ancient sea shells crushed into powder by the ocean and swept inland by wind and waves. Once this shell-sand had reached the area, a complex process over thousands of years turned created this natural wonder known as the Pinnacles. Every time it rained, the water would cause some of the calcium carbonate in the shell-sand to seep into the ground, hardening and slowly forming the Pinnacles beneath the ground. Bushfires and erosion caused the surrounding loose sand to blow away, leaving behind the natural splendour of the Pinnacles that we enjoy today.