Numerous results were not surprising, as the majority of substances had the variations predicted. The rover should be able to isolate the real source, the researchers said.
Washington D.C. [USA], Nov 13 (ANI): In a move to study the signs of ancient life on Mars, NASA had a year ago announced that it will be sending a rover to the red planet in 2020.The landing site, Jezero, has been found to be harbouring deposits of hydrated silica, a mineral that just happens to be particularly good at preserving biosignatures. Like Earth, Mars goes by means of its seasons; over the course of a 12 months, the air strain adjustments.
NASA's Curiosity Mars rover, which took this selfie on 12 May, 2019, has been busy measuring gases in Gale Crater and has found a curious case of inexplainable oxygen levels. During the winter hemisphere, the Carbon dioxide freezes over the pole, and the pressure drops across the region. It evaporates in the spring and summer, however, raising the air pressure again. Researchers see molecules like nitrogen and argon change in concentration according to the season, too. But it didn't. Instead, the amount of the gas in the air rose throughout spring and summer by as much as 30%, and then dropped back to levels predicted by known chemistry in fall. This pattern then repeated each season but with slightly different amounts of oxygen added to the atmosphere each time.
In a paper that has been just published in the Journal of Geophysical Research, experts wrote that oxygen has shown "significant seasonal and interannual variability, suggesting an unknown atmospheric or surface process at work".
That hypothesis, however, literally didn't hold water.
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There actually isn't all that much oxygen on Mars. Could solar radiation have broken up oxygen molecules into two atoms that blew away into space?
The paper's lead creator, Briony Horgan of Purdue College in West Lafayette, Indiana, mentioned, 'CRISM noticed carbonates right here years in the past, however we exclusively not too long ago observed how concentrated they're proper the place a lakeshore can be'. It must be some chemical sources and sinks that we cannot yet take into account, the studys first author Melissa Trainer, a planetary scientist at NASAs Goddard Space Flight Center, said in the release. Now, oxygen ranges have been noticed rising and falling over the Gale Crater, by quantities that simply do not match any recognized chemical processes.
Sushil Atreya, professor of climate and space sciences at the University of MI revealed that the new discovery is mind-boggling, and he made it clear that this is for the first time that such a discovery is being made in the Red Planet. I think there's something to it. Nobody does, ' says Arteya.
Oxygen and methane can be produced biologically and geologically, however, the Curiosity rover doesn't have equipment that can give a precise answer to that question. The researchers are tackling the non-biological aspect as it seems more probable. In June, its Sample Analysis at Mars instrument detected a surprising spike in methane gas that puzzled NASA scientists.