Mars provided favorable conditions for life before Earth

The idea that our neighboring planet might be home to intelligent beings has captured the entire world’s imagination and prompted many visions of Mars, some peaceful and realistic while others more exotic. The point is, humans have sent more spaceships to study Mars than any other planet outside Earth. So far, there is no evidence of life on Mars, but the search has not stopped. Just as life itself evolves, so do the ways we seek. Today, the Red Planet remains a prime target in the search for life. Perhaps precisely because, according to a study, the Red Planet would have provided habitable conditions a few billion years ago.

Hope is 4 billion years old…

March is on average cold inhospitable, with average temperatures -63°C (-81 degrees Fahrenheit). Highs in a season that scientists compare to summer sometimes reach highs of 30 degrees Celsius (86 degrees Fahrenheit), perfect for a trip to the beach on land. But on Mars, it’s impossible. Since then, the planet’s atmosphere contains 95.3% CO, and without a magnetic field, its surface is bombarded with solar radiation. Low atmospheric pressure combined with cold temperatures means that life as we know it cannot exist under these conditions.

However, the study conducted by the University Western Ontario, shows that Mars had a real chance of developing life very early, 4 billion years ago. Especially when the giant meteorites inhibiting life stopped colliding with the red planet. These results are published in the scientific journal.natural earth sciences‘, he suggested that the conditions under which life could have thrived may have occurred on Mars about 4.2 to 3.5 billion years ago. This predates the earliest evidence of life on Earth by 500 million years.

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A team of researchers from Department of Earth Sciences and Geography From Western Ontario to Mineral analyzes of meteorite pieces from the highlands of southern Mars According to Desmond MoserResearch Director, Impacts of giant meteorites on Mars between 4.2 and 3.5 billion years may have in fact accelerated the release of the first water from the planet’s interior, paving the way for life-generating reactions. ».

This means that the surface of Mars could have become habitable when water is thought to have been plentiful there. In fact, many images of the planet show ” Valleys carved by rivers, gravel formed in streams and sediment collections that can come from basins and deltas Under these conditions, life would have been possible.


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