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Life on Mars 4.4 Billion Years Ago

Posted on 30 July 2019

Researchers have recently discovered that Mars could have had life growing on it 4.4 billion years ago. 

When Mars first formed, there were lots of giant meteorites hitting the planet, which would have made it very hard or impossible for life to form. The scientists from Western University who were involved in the study analysed mineral grains hidden inside the meteorites and found out that the meteorites stopped hitting Mars around 4.48 billion years ago. This goes against the thought that the planet was hit by another round of meteorites 3.8 billion years ago. 

So, the scientists believe that there was a period of around 700 million years between 3.5 and 4.2 million years ago where Mars could have generated a lot of life. Incredibly, this was around 500 million years before life started forming on Earth.