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HomeScienceNews

Scientists built a new rover that’s learning here on Earth how to search for life on Mars

February 28th, 2019 at 1:37 PM
life on mars

NASA has learned a lot about Mars thanks to the efforts of its high-tech rovers. We’ve learned a lot about the composition of the planet’s surface, and thanks to Mars orbiters which can relay high-resolution images we know that a large portion of Mars was once covered in water. But we still don’t know if the planet ever supported life.

If NASA or any other scientific body could conclusively prove that life in some form once existed on Mars, it would be a monumental discovery to put it mildly. Now, a new research effort being undertaken in Chile’s Atacama Desert is giving scientists a clue as to how they might find evidence of life on Mars.

In a paper published in Frontiers in Microbiology, researchers describe a new rover concept that they tested in one of the driest places on Earth. Their working theory is that deep below the dusty, deadly surface of Mars, microorganisms may have hung on for a lot longer than any life that may have once roamed up above.

As Gizmodo reports, the rover that the team, led by researcher Stephen Pointing, has designed is built to dig tiny, deep holes in the dry crust and sample the soil below. In this way, the rover may be able to find bacteria that have endured over time, and the findings here on Earth hint at what might be down there.

The researchers found that despite scant moisture and extreme temperatures on the surface, bacteria still dominate once you dig a few feet down. Similar microorganisms might actually still be present on Mars today, but we’d have no way of knowing without piercing deep into the dusty crust and looking for ourselves.

The rover worked well here on Earth, but there’s another layer of complexity in searching for life below the surface of Mars. Knowing where to actually search for the potential of life is a very difficult question to answer, and even if there are still microbes alive on Mars today, or even evidence of microbes that once existed, it’s likely that they’d be confined to specific areas of the planet rather than spread uniformly across it.

Unfortunately, a mission based on this rover concept hasn’t been cleared by NASA, and given the massive costs involved in carrying one out it’s unlikely that the U.S. space agency will do so for the foreseeable future.

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 of reporting is second only to his gaming addiction.




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