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.
Scroll down for videos
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’.
WHY WE SEE ODD THINGS ON MARS
Pareidolia is the psychological response to seeing faces and other significant and everyday items in random stimulus.
It is a form of apophenia, when people see patterns in random, unconnected data.
There have been multiple occasions when people have claimed to see religious images and themes in unexpected places.
On the red planet, one of the most famous is the ‘face on Mars’ spotted by one of the Viking orbiters in 1976.
This was later proven to just be a chance alignment of shifting sand dunes.
The sighting was first published to YouTube by Paranormal Crucible, which was spotted on Thursday – but NASA released the image in March.
‘This object definitely looks out of place and in my opinion could be the petrified remnants of a Martian tree,’ the alien hunter and YouTuber shared in the video description.
‘Object is around 3 feet in height, and with numerous discoveries of plant and animal life on mars, it would be logical to assume, that a variety of tree either existed, or still exists on this enigmatic planet.’
NASA explained that the image was taken by the Mastcam onboard NASA’s Mars rover Curiosity on Sol 1647 in March.
Although it may be just one of the many rocks found on the Red Planet, conspiracy theorists believe it could prove that life was present at some point.
‘It is a good assumption since NASA themselves said Mars was Earth-like when a solar explosion hit the planet, stripping the atmosphere and oceans from the surface, well-known Martian researcher Scott C Warning shared on UFO Sightings Daily regarding Paranormal Crucible’s discovery.
If trees still existed on Mars, it would need a good source of water to survive – which another conspiracy theorist claimed to have seen in NASA images last year.
In a video posted on YouTube, he claimed to have found evidence of lakes of standing water surrounded by trees on the surface of Mars in images taken by NASA’s Mars Global Surveyor.
In an image (pictured) snapped by the Curiosity rover on Sol 164, some have suggested there is an ancient tree stump that stands about three feet high, which means a variety of plants ‘either existed or still exist’ on Mars
The YouTube channel, WhatsUpInTheSky37, is dedicating to scouring NASA images for evidence of alien life.
Using images taken by the Mars Orbiter Camera on the Mars Global Surveyor, Will Farrar, who runs the channel from his home in from Salisibury, Maryland, said he believed they showed an abundance of water that could support alien life.
In the description for the video, Will Farrar, who runs the channel, said: ‘We now have more than five or six very good shots from the air that seem to show frozen or warm water lakes sitting on the Martian surface.
Although it may be just one of the many rocks found on the Red Planet, conspiracy theorists believe it could prove that life was present at some point
‘This has never been addressed by NASA since we are still looking for these ‘minuscule’ traces of life and water. I ask you to use your judgement on this one. What does this look like to you?’
Mr Farrar does not seem to be alone in thinking the footage shows lakes and trees – many people have commented on the video agreeing with him.
If trees still existed on Mars, it would need a good source of water to survive – which another conspiracy theorist claimed to have seen in NASA images last year. He claimed eto have found evidence of lakes of standing water surrounded by trees on the surface of Mars
Ted Cox posted: ‘How did they let this one get through? They look like tree lined lakes to me.’
Another user, M Brontë, speculated about what else it could be, posting: ‘This totally looks like liquid…water, mud, mercury pools…I don’t know but definitely a liquidy substance here.’
NASA originally posted this image online, which alien-hunters have claimed showed lakes surrounded by trees
Scientists believe liquid water once flowed on the surface of Mars billions of years ago, but it has long since evaporated. Small ice deposits may still exist in some of the craters close to the poles and under the surface. A stock picture of Mars is shown
The video was also promoted on the blog, Ufosightingsdaily.com.
Waring, the editor of the blog wrote: ‘It’s a bit mind-blowing, but there are lakes on Mars and we now have government evidence to back that up.’
‘This is 100 per cent proof that lakes and rivers exist on Mars, which means that fish and water creatures do as well.’
‘Water is a main source for animals to exist, so this may also be a big visiting spot from some smaller life forms.’
However, despite the claims, NASA said it has yet to find any evidence for significant levels of liquid water on Mars.
In September, NASA confirmed that ‘dark fingers’ spotted in Mars Reconnaissance Orbiter images are likely made by liquid moving across, or beneath, the planet’s surface.
There is growing evidence that the planet was once rich in liquid water that shaped valleys, canyons and even dried out ocean beds before it evaporated billions of years ago.
There are, however, hopes that water ice may exist in craters close to the poles and perhaps buried deep under the surface in the Martian soil.