Mars used to have rain

A new study shows that in ancient times on Mars there was a phenomenon of rain and snow.

The study is published in Geophysical Research Letters after the science team explored the topographic structure of the valley system on the red planet. According to scientists at Brown University, USA, with the current topography, past Mars may have had some water flowing through some locations.

The model of the valley on Mars was built using a computer.(Photo: NASA / JPL-Caltech / ESA / DLR / FU Berlin / MSSS)

Examining the various valley networks of Mars, the researchers discovered four of these valley networks that could be made up of the flow of rain.

According to Kat Scanlon, the lead researcher, this process is called topographic rain . The process of rain terrain is formed by increasing or decreasing the amount of moist air on a mountain, leading to rain on the mountainside and creating a valley below. Because the winds are not enough energy to cross the mountains, rain only appears on one side of the mountain.

Also in the study, the scientific community analyzed data collected through computer models to determine the wind direction. Models are made to show that the deepest valleys are the places where the heaviest rains have occurred.

However, this is only an initial study and experts believe that more research is needed to conclude that the Martian terrain is made up of long-standing rain or underground underground streams.