The planet Mars underwent a major change in climate about 400,000 years ago.which accompanied the changes in prevailing winds, an event that coincides with the end of the last Ice Age.

Researchers evaluated the surface texture and chemical composition in dunes south of Utopia Planitia determining the age of sand structures and the prevailing wind directions at various locations near the landing site of the robber Zhurong.

So found the team _ comprising several institutions of the Chinese Academy of Sciences, in collaboration with colleagues from Brown University _ the prevailing wind direction in the south of Utopia Planitia shifted almost 70° from northeast to northwesteroding crescent-shaped dunes formed during the last ice age to dark longitudinal ridges after the last Martian ice age.

“Exploration and research into the evolution of the Martian climate has long been a matter of great concern,” said LI Chunlai of the National Astronomical Observatories of the Chinese Academy of Sciences (NAOC), principal investigator on the study. “Mars is the most Earth-like planet in the solar system. Understanding weather processes on Mars promises to reveal details about the evolution and history of Earth and other planets in our solar system.he added.

Previous research has suggested that the climate on Mars has changed over time, but the inability to directly measure and sample geological formations on Mars limited scientists’ ability to better validate and characterize the planet’s climate processes . Europe Press.

The LI team used high-resolution orbital cameras and the Earth’s ground and multispectral cameras robber Zhurong, surface composition analyzers and meteorological measuring instruments to finally get data on sight directly from the surface of Mars.

The researchers estimate that a change in the angle of Mars’ rotational axis caused the planet to emerge from its most recent ice age.. The effects of this change were later captured by the morphology, orientation, physical properties and stratigraphy, or bedding, of the dunes on the southern Martian utopian plain where the Zhurong rover landed.

The study, published in Natureis designed to integrate sliding scale data from dune information and weather conditions to not only confirm a change in prevailing wind direction with the end of the last ice age, but also improve general circulation models used to predict seasonal changes on a smaller scale.

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It is important to emphasize that prevailing wind data and dune stratigraphy in the landing area of ​​the robber were consistent with the presence of layers of ice and dust found in the middle and high latitudes of the planet.

Much effort is being made to characterize the ancient climate of Mars during the Amazonian Era, which began between 3.55 and 1.8 billion years ago and continues to this day.

“Understanding the Amazon climate is essential to explain the current Martian landscape, the reservoirs of volatiles and the atmospheric state, and to relate these current observations and active processes to models of the ancient Martian climate,” said LI, who added that the Amazon and current climate will be further studied for knowledge about the last two billion years of climate history on Mars.