What would happen if life would support even on Mars ?
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When searching for life, most astrobiologists agree that water is key. All forms of terrestrial life require water, and while it is possible that life could evolve without the precious liquid, it is easier to search for conditions that are known to be optimal, rather than conditions we suppose could be." [5 Bold Claims of Alien Life ]
This raises a problem on Mars. The planet today is dry and barren, with most of its water locked up in the polar ice caps. The planet's thin atmosphere allows radiation from the sun to irradiate the surface of the planet, adding to the environment's challenges. Evidence for water first showed up in 2000, when images from NASA's Mars Global Surveyor found gullies that appeared to have formed from flowing water.
But Mars wasn't always a desolate wasteland. Scientists think that, in the past, water may have flowed across the surface in rivers and streams, and that vast oceans covered the planet. Over time, the water was lost into space, but early conditions on the wetter planet could have been right for life to evolve. One estimate suggests that an ancient ocean could have covered as much as 19 percent of the planet's surface, compared to the 17 percent covered by Earth's Atlantic Ocean
This raises a problem on Mars. The planet today is dry and barren, with most of its water locked up in the polar ice caps. The planet's thin atmosphere allows radiation from the sun to irradiate the surface of the planet, adding to the environment's challenges. Evidence for water first showed up in 2000, when images from NASA's Mars Global Surveyor found gullies that appeared to have formed from flowing water.
But Mars wasn't always a desolate wasteland. Scientists think that, in the past, water may have flowed across the surface in rivers and streams, and that vast oceans covered the planet. Over time, the water was lost into space, but early conditions on the wetter planet could have been right for life to evolve. One estimate suggests that an ancient ocean could have covered as much as 19 percent of the planet's surface, compared to the 17 percent covered by Earth's Atlantic Ocean
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There are very few chances of finding life on Mars by the current rover because its cameras aren’t powerful enough to observe microbes.
But if by chance any aeronautical space administration finds any evidence of life on Mars then we can start shifting a portion of the population to Mars.
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