Halogen gas discovered in atmosphere of Mars, scientists call it a 'major milestone'

ESA-Roscosmos ExoMars Trace Gas Orbiter craft detected first halogen gas on Mars, shedding new light on history of Red Planet. According to a study published in Science vances, scientists detected hydrogen chloride, which is comprised of one hydrogen atom and one chlorine atom. researchers said that gases based on chlorine or sulphur are possible indicators of volcanic activity, which Mars scientists were alrey looking to discover, but new find has some strange qualities. 

‘First new trace gas in Mars’ atmosphere’ 

According to study, fact that this particular discovery was me in distant locations at same time, without any or gases that would be expected from martian volcas, means that an unkwn process between surface of planet and its atmosphere is taking place. scientists said that salt is lifted into atmosphere by winds. Sunlight, on or hand, warms atmosphere causing dust and water vapour to rise. se two components reach with each or in a bid to release chlorine eventually producing hydrogen chlorine. 

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In a statement, Håkan Svedhem, ESA’s ExoMars Trace Gas Orbiter project scientist said, “ discovery of first new trace gas in atmosphere of Mars is a major milestone for Trace Gas Orbiter mission”. 

Svedhem ded, "This is first new class of gas discovered since claimed observation of methane by ESA’s Mars Express in 2004, which motivated search for or organic molecules and ultimately culminated in development of Trace Gas Orbiter mission, for which detecting new gases is a primary goal”. 

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Scientists said that understanding process in more detail is vital to understanding how Martian climate evolved, especially as cycle is so similar to that on Earth. Svedhem said that changing seasons on Mars and particular relatively hot summer in sourn hemisphere seem to be driving force behind new observations such as enhanced atmospheric water loss and dust activity linked to detection of hydrogen chloride, that was seen in two latest studies. He ded that Trace Gas Orbiter observations are enabling researchers to explore Martian atmosphere like never before. 

Scientists can also measure water vapour and ‘semi-heavy’ water, which is when a hydrogen atom in compound is replaced by a deuterium atom. se developments can be measured in more detail than has ever been done before. Principal investigator of Nir and Occultation for MArs Discovery (M), said that it is like scientists h 2D view before, but w y can explore atmosphere in 3D. 

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