Reveal the mysterious black hole on the Martian crater

Russian scientists say there has been a huge ocean on Mars three billion years ago and can still observe its ruins.

>>>Mars used to have rain

"Our studies have demonstrated the existence of an ocean in the Utopia Planitia region on the red planet," Mikhail Ivanov, director of Russian scientific research, told ITAR-TASS .

The scientist also revealed that more oceans were frozen in the Hesperian period, extending on Mars about 2.9 to 3 billion years ago.

Nikhail explained: "At that time, according to our hypothesis, the planet had constant water circulation in the Utopia Planitia area and formed an ocean with a circular basin like the present one." .

Russian scientists have obtained valuable data from their probes, including evidence of the existence of mud in Utopia Planitia.

Mars's Utopia Planitia concave area

Utopia Planitia is an area formed after a massive collision of Mars with asteroids, creating a recessed terrain with an estimated diameter of 3300km.

After studying Mars-derived meteorites and discovering fossils of microorganisms, scientists have come to the conclusion that once the red planet existed.

Last June, NASA's Curious Exploration - Curiosity found evidence of the existence of water on the surface of Mars.

Curiosity has taken clay samples on the surface and analyzed them, US scientists have confirmed that this type of clay can only form if there is water and also said that the water on Mars could be brackish or even sweet. salty.