Fungi abound on Mars? Experts disagree

A group of scientists said that there are signs of life on Mars, images show that there are fungus like specimens similar to marblella, which seem to be emerging from the Martian soil, and its size is growing. However, some researchers said that the evidence is only speculative and far from enough to support the above conclusion.
Experts say there are signs of fungus
According to the report, 11 researchers from different countries and institutions said in a paper agreed to be published in the journal progress in microbiology that the analysis of images taken by some previous Mars exploration missions showed that "in a crack on the surface of Mars, there are white specimens with no fixed shape constantly changing their shape and position, and then disappeared within three days.".
There are also signs that thousands of black, spider like materials will grow on a large scale in spring and disappear in winter.
This pattern, they say, "repeats every spring and... May represent the presence of large groups of black fungi, molds, mosses, algae, methanogens and sulfur reducing species. In addition, black fungal specimens have been found on some Mars rovers.
"Growth, movement, and changes in shape and position constitute behavior that supports the hypothesis that life exists on Mars," the authors said The authors include scientists from the Harvard Smithsonian Center for Astrophysics in the United States and the University of Aston in the United Kingdom.
In fact, it's just spherical condensate?
But Jonathan Clark, President of the Mars Society of Australia, said the study is only speculative and the evidence provided is far from enough to support the claim that life exists on Mars. Clark himself was not involved in the research described in this paper.
"I'm a geologist, studying Mars and Mars simulators in extreme environments like Mars," Clark said. My view of the evidence is that the explanation for fungi doesn't make sense
"The conditions on Mars are so extreme that you don't see fungi or any kind of life growing at this rate under conditions like cold and low pressure," he said. Life can hardly survive, let alone thrive. "
Clark said that the spheroid with biological growth characteristics described in the paper is spheroidal condensate, and its constituent material is hematite. When this rock is eroded, small hard balls are left.
"It's like you go to the beach, where there are a lot of shells," Clark said. If the wind blows in, the sand will move away, exposing more shells. But we don't say that the shells are growing on the beach, it's just that they are becoming visible
He added that Martian soil contains very little organic matter and fungi cannot grow. "There's no fungus that can sustain life," he said. It's like expecting to see a lush garden in the desert almost overnight.