A dried tree was discovered on Mars.
In the photo sent to Earth by the rover "Curiosity", there was a vertically standing object about 1 meter high, similar to a stump of a tree.
The picture was taken on March 25, 2017. Opinions about this object are different, some believe that it is the remains of the real tree itself, others that this trunk is formed by lava, but also on the basis of the tree that once stood here.
Virtual archaeologists believe stump either petrified, or dried out. However, a third option is also possible: the trunk is formed by lava. But not without the participation of a once-living tree.
On Earth, similar "lava trees" are on the Big Hawaiian Island, where in the jungle to the east of the Hawaiian Volcanic National Park are charred outside and hollow inside tree trunks. In 1790, during the eruption of Kilauea volcano, trees were in the path of a stream of hot lava and burned, but not immediately. Lava surrounded them, forming pillars, repeating the contours of the tree. And froze.
Mars had great volcanic activity in the past and could easily form lava trees, one of which was miraculously preserved.
It is worth noting that the Opportunity Mars rover sent pictures on which it was possible to see the remains of logs.