According to scientists, these dark formations may be evidence that Mars was once habitable.
The red planet also has mysterious dark areas. For several years scientists speculated with formations other than the normal surface of Mars. They may have found the answer and you have to see if, at some point, it was habitable.
According to a study by the SETI Institute, these dark areas are « liquid-like » fluids. It can be a kind of « melting ice » that combines with the salty permafrost from the planet’s subsoil.
The slippage causes dark, narrow lines to remain, called Recurring Slope Lines (RSL).
Although the surface looks inhospitable today, perhaps 3 billion years ago it was different.
This is the argument of Janice Bishop, lead author of the study published in Science Advances.
The SETI (Search for Extraterrestrial Intelligence) institute works to explore, understand and explain the nature of life in the universe.
Landslides on Mars
According to Bishop, the landslides occur near the Palikir and Krupac craters on Mars. There have been records of them for at least a decade.
NASA had captured the first images of these small movements, called crashes, in addition to the RSL they leave behind.
This new research takes a previous idea: that the dark lines on the surface were related only to the chemical reaction between the underground salts of chlorine and a large amount of sulfate. Now you add the permafrost, which would generate water with a high concentration of salt.
Although Mars does not contain features that make it habitable, there are areas on Earth similar to Mars that do have life. The example SETI members set is Antarctica, where shrimp and other marine creatures live.
To learn more about Bishop and his colleagues’ research, you can read this release released by the SETI institute.