In February, the European Space Agency tweeted a photo of its Mars Express probe, revealing a system of trenches, valleys, and dry riverbeds. The discovery indicated that the planet Mars could once have harvested life in much warmer and wetter conditions than it does today. However, a new study published yesterday in Science Advance claims that the Red Planet is included in "intensive rivers" that are much broader than on Earth.
This complicates the picture for scientists who, in the author's view, are trying to model the ancient Martian climate. Edwin Kite, assistant professor of geophysical sciences at the University of Chicago.
He said: "It is difficult to explain rivers or lakes from the information we have.
" This makes a difficult problem even more difficult. However, he added that the restrictions could help narrow down the many theories the researchers have proposed to explain the climate.
Looking for a better understanding of what Mars would look like , Dr. Kite and his colleagues analyzed photographs and elevation models for more than 200 ancient riverbeds from Marsland that stretched over a billion years.
The width and steepness of the riverbeds and the size of the gravel suggest the force and the Volume of Water Flow.
Their analysis shows clear evidence of sustained heavy runoff entering well into the final phase of the humid climate.
Dr Kite added, "They would expect you that they gradually fade over time, but we do not see that.
"The wettest day of the year is still very wet.
"[It is possible] The climate had an on / off switch.
" Our work answers some existing questions but raises a new one.
"What is wrong: the climate models, the atmospheric evolution models or our basic understanding of the inner solar system chronology?"
Yesterday it was revealed how growing "mushrooms" in a Mars Curiosity Rover photo were discovering claims about life on the Red Planet.
What appears to be algae, cake, and "Mars mushrooms" has been reported by Astrobiology and Space Science .
Dr. from Microbiology, School of Life Sciences, Indis, said, "There are no geological or other abiogenic forces on Earth that can lead to hundreds of sedimentary structures that have fungal forms, stems, stems, and deposits that look like spurs surrounding the surface.
"In fact, fifteen specimens were photographed by NASA and grew out of the soil in just three days."
Dr Vincenzo Rizzo, a biogeologist at the National Research Council, also reports methane on seasonal fluctuations in Marti as an additional testimony to life.
He said, "As we detail in our article, 90 percent of terrestrial methane is of biological origin, and seasonal variations in atmospheric methane are directly related to the growth and death cycle of Plants.
"The cyclical variations of Martian methane reflect the active biology that also exists However, the evidence is so controversial that the Journal of Astrobiology and Space Science Reviews subjected the article to a comprehensive peer review by six independent scientists and eight senior editors.
While three of them rejected the evidence, the remaining eleven recommended publication after certain revisions.