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DTSTART;TZID=America/Los_Angeles:20220818T110000
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SUMMARY:An Evolutionary Mystery: Mirror Asymmetry in Life and in Space (Rebroadcast)
DESCRIPTION:Brett McGuire\, National Radio Astronomy Observatory; and Ryan Fortenberry\, University of Mississippi\nSponsored by ACS Webinars and ACS Astrochemistry Subdivision\nAugust 18\, 11am-Noon PT\, Online via Zoom\, Free\, Registration required\n\nMost molecules used by life exist in two forms that are mirror images of each other. One of the great unanswered questions in our evolutionary history is why all life on Earth\, and their critical biological molecules like amino acids and proteins\, use only one “hand” of these forms. Sugars are exclusively right-handed\, amino acids are left-handed\, and even DNA coils into right-handed helices. What clues can we glean from molecules in space to discover the possible interstellar origins of this “homochirality?” \nJoin Astrochemist Brett McGuire of currently the McGuire Group at MIT to find out how chemists are using state-of-the-art tools to peer into the center of our galaxy for the answers! \n\n\n\n\n\n\nWhat You Will Learn\n\nWhat is the impact of homochirality on biology and chemical evolution\nWhat are the potential origins of homochirality and what are the challenges in studying possible interstellar origins\nWhat was the first detection of a chiral interstellar molecule and what are the challenges associated with measuring a potential chiral excess in space\n\n\n\n\n\n\n\nWebinar Details\n\nThursday\, August 18\, 2022 @ 2–3pm ET\nFree to Register with ACS ID\nSlides will be available to download on the day of the webinar
URL:https://www.siliconvalleyacs.org/event/an-evolutionary-mystery-mirror-asymmetry-in-life-and-in-space-rebroadcast/
LOCATION:Virtual
CATEGORIES:ACS Webinars
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DTSTART;TZID=America/Los_Angeles:20220831T110000
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DTSTAMP:20260425T222615
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SUMMARY:How We Study Molecules in Space: Finding and Analyzing Cosmic Carbon
DESCRIPTION:Prof. Brett A. McGuire\, Massachusetts Institute of Technology; and Prof. Kyle Crabtree\, UC Davis\nSponsored by ACS Webinars and ACS Astrochemistry Subdivision\nAugust 31\, 11am-12:15pm PT\, Online via Zoom\, Free\, Registration required\nSlides will be available to download on the day of the webinar\n\nPolycyclic Aromatic Hydrocarbons (PAHs) are a large reservoir of reactive carbon in the interstellar medium that play a significant role in star and planet formation. These molecules have been observed both in our galaxy and numerous others by NASA telescopes and can even be found on Earth in engine exhaust and the char on a grilled hamburger. But what is the relationship between interstellar PAHs and those found on our planet\, and what can that tell us about the makeup of the universe? \nAstrochemist Brett McGuire of the Massachusetts Institute of Technology led the GOTHAM research collaboration that in 2021 became the first scientists to identify individual molecules of PAHs via radio observations of the Taurus molecular cloud. This breakthrough will enable astrochemists to investigate the detailed chemical pathways for the formation and destruction of these complex molecules\, which until now have only been observed en masse. Register now to discover how we study molecules in space\, why PAHs are important to both interstellar chemistry and understanding the origins of life on Earth\, and what are the current efforts to understand the chemistry of PAHs in the wake of the GOTHAM collaboration’s discovery. \nThis ACS Webinar is moderated by Kyle Crabtree of the University of California\, Davis and is co-produced by the ACS Astrochemistry Subdivision. \n\n\n\n\n\n\nWhat You Will Learn\n\nHow we study molecules in space\, including detections of PAH molecules via their rotational transitions using Green Bank Telescope observations of the Taurus Molecular Cloud (TMC-1) from the GOTHAM collaboration\nWhy Polycyclic Aromatic Hydrocarbons (PAHs) are important to interstellar chemistry\nMethods for studying the chemistry of PAHs from Earth\, including astrochemical models and laboratory spectroscopy
URL:https://www.siliconvalleyacs.org/event/how-we-study-molecules-in-space-finding-and-analyzing-cosmic-carbon/
LOCATION:Virtual
CATEGORIES:ACS Webinars
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