There was a huge ocean on Mars billions of years ago, what does that mean today?
Conditions are unfavorable for life on Mars today. The weather there is very cold. There is no possibility of getting water in liquid state. But there was once plenty of water on Mars, scientists are finding plenty of evidence. This raises the possibility that there could be life in that period. But now scientists have found evidence that there was a huge ocean on Mars 3.5 billion years ago. This makes it even more likely that there must be life in some form.
in an area of millions of kilometers
Scientists have discovered that this ocean covers millions of square kilometers of the Martian surface. This evidence comes from satellite photographs of the Martian surface, which reveal that there are distinct ridges in the topography. Based on photographs taken from different angles, researchers were able to prepare relief maps.
At the bottom of a vast delta or sea,
The researchers observed 6,500-km-long ridge lines, which appear to have been cut by a river, suggesting that they may have either been formed from a river delta or a stream. of currents in the ocean itself. Made in the form of a bar. According to Pennsylvania State University geologist Benjamin Cardenas, his team also looked at stratology and depression records for this.
by stratology
, Cárdenas said that the history of Earth’s waterways is also a study of sediments, which accumulate on top of each other over time. This is called stratology, in which water carries sediment with it and by measuring the changes in it we can learn about changes in the Earth. But this time researchers have done it for Mars.
of 2007 satellite data
Researchers used data collected by the Mars Reconnaissance Orbiter in 2007 to study the surface ridges of the Martian regions and their thickness, angle and position. This is a special low region of Mars called aioli dorsa.
It was a period of so many changes
It is likely that during that period there would have been many changes in the field. This shows that there is evidence to suggest that the sea level rose significantly at that time and there must have been rapid movement of rocks by rivers and streams. Today, Aeolis Dorsa is known as the region with the most rivers on Mars.
Relationship to life on Mars
All these are related to the search for life on Mars. Scientists have been searching the Red Planet since the dawn of time to answer the question of whether there were ever conditions on Mars where life could have flourished. Cardenas says the first of these things is that the existence of such a large ocean on Mars suggests that life was more likely there. It also provides information on ancient Martian climate and its evolution. This suggests that there was a time when Mars was hot enough that there must have been a dense atmosphere for liquid water to exist there.
The study is published in the journal Geophysical Research: Planet and Nature Geosciences. The researchers are not limiting their study to the caudal aeolis dorsa region. Many regions of Mars may have regions with crests of such rivers. It also shows that the vast Martian soil contained water. Scientists are also looking for where there is water even below the surface on Mars
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