\"Methane on Mars holds a lot of interest to the planetary science community because it could potentially suggest life elsewhere in the Universe.\"<\/p><\/blockquote>\n\n\n\n
The community he refers to is a group of 1,500 top-ranking scientists from around the world who routinely collaborate on space missions.<\/p>\n\n\n\n
Methane on Earth derives from livestock, decaying organic waste and the production of coal, natural gas and oil. How it is being produced on Mars, and why, is a big question.<\/strong><\/p>\n\n\n\n
In his lab, Moores and his team are creating a methane spectrometer that may one day fly to Mars and examine the phenomenon, detecting and measuring the presence of methane as often as every 15 minutes. The equipment is revolutionary because making this measurement is challenging \u2013 so much so that researchers working with NASA\u2019s Mars rover, aptly named Curiosity, have only been able to measure gas near the surface a dozen times in the past 20 years.<\/p>\n\n\n\n
Moores\u2019 team is collaborating with ABB, a company specializing in optical remote sensing instruments for space applications. Using technology called integrated cavity output spectroscopy (ICOS), the team can send out very restricted wavelengths of light through gaseous samples, to measure how much light each wavelength is absorbing. ICOS uses extremely reflective mirrors within a gas cell to measure the absorption rate of gas as each photon bounces back and forth tens of thousands or even hundreds of thousands of times.<\/p>\n\n\n\n
John Moores, Lassonde School of Engineering<\/figcaption><\/figure>\n\n\n\n Previously, Curiosity used a similar technology called a tunable laser spectrometer. However, this technology only allows photons to bounce back and forth 81 times, which means it takes hours to make precise measurements of the tiny amount of methane (as low as 100 parts per trillion) in the Martian atmosphere. ABB\u2019s technology, however, can make this measurement in a matter of minutes.<\/p>\n\n\n\n
\u201cWe\u2019ve been improving this technology a lot in the last 20 years,\u201d says Moores.<\/p>\n\n\n\n
Methane measurements remain relatively consistent on Earth, but on Mars they\u2019re changing on a timescale of a year by a factor of three, hovering lower in winter and spring, and climbing to exorbitant heights in summer and fall.<\/p>\n\n\n\n
\"We thought Mars was a dead planet, but exciting things are happening even today.\"<\/p><\/blockquote>\n\n\n\n
Methane is being actively produced by something that can change rapidly. It could be ancient organic materials seeping through the surface and decomposing over time, or a microorganism community beneath the surface. Or it could be geological reactions between hot water and different types of rocks.<\/p>\n\n\n\n
¿ì²¥ÊÓƵing other planets has given Moores a new perspective on life on Earth. Having grown up in St. John\u2019s, Newfoundland, he is familiar with cold, harsh environments and how technology can play an important role in survival and quality of life.<\/p>\n\n\n\n
\u201cOut in space we have a lot of technology that we rely on here on Earth \u2013 satellites and GPS technology, to name a few.<\/p>\n\n\n\n
\u201cAs Canadians, we have a deep connection to space exploration because we understand the role of technology in surviving uninhabitable environments, and this work has given me a lot of appreciation for that relationship.\u201d<\/p>\n","protected":false},"template":"","meta":{"_kad_blocks_custom_css":"","_kad_blocks_head_custom_js":"","_kad_blocks_body_custom_js":"","_kad_blocks_footer_custom_js":""},"categories":[5],"tags":[19,18],"class_list":["post-203","article","type-article","status-publish","hentry","category-science","tag-lassonde","tag-nserc"],"yoast_head":"\n
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