NASAs Mars 2020 mission launch date is rapidly approaching, and weve seen all the signs that the Perseverance rover is just about ready to make the long journey to the Red Planet. What will it find when it arrives? Thats a question nobody can answer, but new research by scientists at Stanford suggests that the rovers targeted landing site may be a great place to look for signs of life.
NASA chose the rovers landing location a large bowl-shaped depression known as the Jezero crater because its located in an area where ancient martian rivers flowed, carving channels and depositing sediment into layers. This is ideal for scientists hunting for signatures of life as it offers the opportunity to study material that was on the surface over a long period of time.
Stanford scientists used aerial images of the Jezero crater and the surrounding area to build a model of how the area developed. They found that the sediments deposited near the dried-up river delta have a high probability of preserving signs of ancient life, if it did indeed exist.
There probably was water for a significant duration on Mars and that environment was most certainly habitable, even if it may have been arid, lead author Mathieu Laptre said in a statement. We showed that sediments were deposited rapidly and that if there were organics, they would have been buried rapidly, which means that they would likely have been preserved and protected.
Thats incredibly important, as exposure on the surface could have easily destroyed evidence of life before it had a chance to be covered in layers of sediment and preserved. The sediment layers are believed to have formed rapidly, but only when specific conditions were present on the surface. The active formation of the river delta may have only taken 20 to 40 years, but that formation was likely discontinuous and spread out across about 400,000 years, according to the scientists.
People have been thinking more and more about the fact that flows on Mars probably were not continuous and that there have been times when you had flows and other times when you had dry spells, Laptre explains. This is a novel way of putting quantitative constraints on how frequently flows probably happened on Mars.
The Mars 2020 mission is slated to launch in late July or early August of this year. The timeline is tight, and NASA cant afford to miss the launch window. If for some reason the launch is delayed beyond the early August limit, the entire mission would have to be pushed back to 2022 at the earliest due to the nature of the orbits of Mars and Earth.
Image Source: NASA/JPL-Caltech/ASU
Mike Wehner has reported on technology and video games for the past decade, covering breaking news and trends in VR, wearables, smartphones, and future tech. Most recently, Mike served as Tech Editor at The Daily Dot, and has been featured in USA Today, Time.com, and countless other web and print outlets. His love ofreporting is second only to his gaming addiction.
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NASAs new rover is headed to the perfect spot to hunt for life on Mars - BGR
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