Mars is the second planet where life is possible, Many types of craters are found in this red planet, and one of them is Gail crater, 154 km in diameter of this crater, this crater is about 3.8 billion years old, methane gas is found in this crater, because from this big crater Methane gas is being emitted, as Mars soil and air samples were tested, analyzing this reaction data obtained through NASA's 'Curiosity Rover.The overnight change in the Martian atmosphere kept the gas close to the ground until the morning, and it can be understood that the Curiosity Rover has detected methane gas.
Many missions were carried out to search for life on Mars, since 2003, many orbiters were released into Mars orbit through multiple spacecraft, and these spacecraft have carried varying amounts of methane to Mars (SN: 1/15/09 ) Is explored.The same NASA landed Curiosity Rover near Gale Crater in 2012.Curiosity Rover observed that gas volume rises and falls in a seasonal cycle (SN: 6/7/18).If there is sunlight on methane, this atmosphere should not last more than about 300 years, but "a seasonal cycle makes us see, or tell, that at the present time something actively produces or destroys methane.As we know, microorganisms produce methane on Earth, and therefore detect methane gas on the red planet, and science considers it as a possible sign of life.
Curiosity rover has detected a Gayle crater near the equator on Mars, which, studied, Curiosity measured an average methane concentration of 0.41 parts per billion inside the Gayle crater, and is a depression of about 154 kilometers wide. For Mars missions. The European Space Agency launched its Trace Gas Orbiter, which was part of the Exomars mission, it came to Mars in 2016, (SN: 10/18/16), when the orbiter called Gail Flew over Retr, but it found no methane gas, it flew over a surprising him.That Gale Crater and found no methane.But the atmosphere may still have minuscule methane concentrations below 0.05 parts per billion, but the trace gas orbiter cannot smell it. If there is enough methane emission from Mars, the curiosity will be so high, that the orbit To find out, there must be enough methane in the atmosphere. NASA's Curiosity Rover measured all methane at night, and found that the gases differed in the Martian atmosphere differently than during the day. It warms the air during the day, due to sunlight.Due to which currents and convection is formed, it mixes different types of molecules together. Methane can be mixed and diluted in the atmosphere during the daytime, and this overnight, the air becomes the surface of methane in cool, and curiosity can smell it, but after sunrise it becomes methane thin again.
Viscori believes that the major problem is that methane concentrations are detected at different times in the night, and this does not explain the periodic spikes in methane, but curiosity has seen this.(SN: 4/28/15).Those spikes showed large methane increases at random intervals throughout Curiosity's mission.Curiosity Rover saw the most recent spike in June 2019 this year, it was the largest plume ever seen, with methane levels at 20 billion per billion, almost 50 times higher than the seasonal average, after a few days, methane gas Levels returned to normal, as before.