There is a reason that perseverance landed where it did, and that reason goes back at least 3.5 billion years.
Mars is thought to have been Earthlike-like early before solar radiation and other cosmic forces killed their senses. This explains why the now-gone rover has gone viral in the Twitterverse and almost everywhere else in Jezero Crater, which is believed to have once been a large lake. may have been showered with microbial life. Scientists have now found evidence that Mars went through the same phase as Earth before the two planets received their senses – something that has not been proven until now.
“Reduced greenhouse gases such as methane (CH4) and hydrogen (H2) may be the only solution that could explain the warming of the ancient Martian climate, but there is a lack of geological evidence that reduced atmosphere in Mars has been missing, ”said Jiancheng Liu, who led a study recently published in Astronomy of nature.
The time for this discovery was okay. Perseverance has begun to explore the Red Planet for any possible signs of life, and that life – if it were as we know it – would need to be felt. But wait. Before you can find out around when Mars started to get atmosphere, and what it looked like in the atmosphere (kind of hard to look at as it is now a space desert), you need to backup longer before there was even oxidation in atmosphere. There is a time when things did not rust on Earth or on Mars because there was not enough oxygen in the atmosphere to interact with iron-rich substances.
Instead of oxidized atmosphere, both Earth and Mars had a smaller atmosphere. This is not the same as the massive reduction in atmosphere experienced by the Red Planet after most of the atmosphere was reduced by solar winds and other cosmic forces. Reduced air is made up of reduced gases such as methane, ammonia, and hydrogen sulfide, which are more hydrogen than a lot of oxygen. Humans would not be able to handle breathing in this poison. However, there are methane-burning microorganisms here on our planet, so it would not be impossible for Mars.
The impact of a greenhouse on Mars was once. Although greenhouse gases are demonized on Earth because too much carbon dioxide and other forms are released into the atmosphere from human pollution, the right amount of these atmospheric gases is needed to make a planet warm up just enough for life-forms to thrive.
Previous studies had assumed on Mars, that this phenomenon occurred with less gases instead of CO2, resulting in a smaller atmosphere on the planet. Evidence of this was finally discovered by Liu and his team when they examined spacecraft data of weathered Martian rocks that showed they had been exposed to that atmosphere.
“The separation of Fe from Al in Martian palaeosols, which is similar to movements seen in palaeosols prior to the Great Oxidation Event on Earth, indicates that an ancient Martian surface was chemically eroded under a greenhouse atmosphere. ‘reduce, ”Liu said.
An orbiting spacecraft studied rocks on the surface of Mars. This spacecraft was equipped with an instrument capable of infrared spectroscopy, which demonstrated the chemistry of these pristine rocks. When infrared light hits a target, it interacts with the molecules that make up that object. As this object absorbs, exposes or diffuses this light it can give a chemical resemblance. What the researchers wanted was to make up the paleosols on Mars, soils that were formed long ago and are not physically and chemically attached to recently formed soils. This is how they named a chemical sign of weather caused by a lesser feeling.
After that, Mars went to an oxidation event like the Great Oxidation Event on Earth, but at a different time and possibly for different reasons. The Earth’s atmosphere was oxidized due to oxygen as a result of processes such as early photosynthesis. Proving that Mars had a smaller atmosphere before its oxidation event could have meant that life was involved in the orbit.
As Perseverence studies Jezero Crater, he may find more to support this discovery, and maybe even a fossil microbe.