According to some researchers, the distant past should not be the subject of focus for the search for life on Mars. The surface on Mars could have actually been habitable about four billion years ago as there were even deep oceans, lakes, and rivers.
Because of that, some astrobiologists even believe that in that era life would do better on Mars than on Earth. They also think that life formed on our planet as it came from the rocks blasted into space by the impact with Mars.
As the global magnetic field of Mars went missing, the situation did not remain the same. The Martian atmosphere that used to be thick thinned because of the charged particles coming from the sun, stripping it. Because of that, about 3.7 billion years ago, as the MAVEN orbiter from NASA suggests, Mars lost its abilities to host life as it turned dry and cold.
There might still be life on Mars today
According to the co-founder of a nonprofit organization that runs the Advances in Genome Biology and Technology conferences, The Genome Partnership, Michael Finney, “If Mars had life 4 billion years ago, Mars still has life. Nothing has happened on Mars that would’ve wiped out life.”
Last month, Finney also said during a Breakthrough Discuss conference panel discussion at the University of California, Berkeley that the life that used to be on Mars might have moved its location and it can still be there, but hiding. The Martian underground might be the place where life could be found as there might be a source of water hidden in that part of the planet.
Since there is no liquid water on the surface of the planet, at the moment, scientists believe that life on Mars can only exist in the undergrounds of the Red Planet. Future missions might reveal whether that’s true or not.
Sam is a freelance writer who has experience writing in the digital world for 4 years after he quit his job. Sam’s interests in current world affairs gave him the drive to pursue a career in journalism. Sam originates from Russia, lived in Canada for a short time between 2011 and 2013, then moved to New York to pursue his career.