Now a pioneering astrophysicist who made headlines for the possible discovery of life on Venus, Sara Seager stumbled upon her path to the stars while taking a shortcut across the University of Toronto’s St. George campus. If phosphine turns out not to be present, this pathway evaporates as a viable life-on-Venus scenario. Sara Seager – MIT – Principal Investigator; Janusz … -- Carl Sagan, Nature, 1967 In celebration of Carl Sagan Day 2020, the Secular Society of MIT presents a special talk by MIT professor of physics and planetary science, Sara Seager. "We exhaustively went through every possibility and ruled all of them out. At the same time, he noted, the clouds of Venus consist mostly of sulfuric acid—a very harsh environment for life, at least as we know it. “Venus is extremely bright, and many of the large ground-based telescopes cannot properly observe it,” says Sara Seager, an MIT astronomer and one of the coauthors of the new phosphine study. Venus is often called Earth’s sister planet. "We are claiming the confident detection of … (Credit: Royal Astronomical Society) We haven’t explored Venus for a very long time. Seager likewise cautioned it’s too early to conclude there’s life on the planet based on these results alone. No life of any kind could exist on the Venusian surface. Book Sara as a Guest Speaker. Airborne life on Venus would be unusual, but perhaps not as strange one might think. Possible marker of life spotted on Venus Date: September 14, 2020 Source: ESO Summary: Astronomers have discovered a rare molecule -- phosphine -- in the clouds of Venus. Biosignature expert Sara Seager will lead the study team. “I went to Jarvis Collegiate and I used to walk through campus on my way because it was so beautiful,” says Seager, a professor […] Venus does have an impressive, permanent cloud deck, stretching for over 20 km in vertical height. She has been a pioneer in the vast and unknown world of exoplanets, planets that orbit stars other than the sun. Just last month, inspired by the upcoming phosphine findings, MIT astronomer Sara Seager … Study co-author Sara Seager, an MIT planetary scientist, ... Venus is kind of Earth’s evil twin,” Clements said. “Clearly something has gone wrong, very wrong, with Venus. Seager's team also has been talking to the private space company Rocket Lab, which had been independently pursuing their own missions to Venus, with ambitions to launch as soon as 2023. But, she added, “on Earth, phosphine is only associated with life.” And Seager commented, “We are thrilled to push the envelope to try to understand what kind of life could exist in the very harsh Venus atmosphere and what further evidence for life a mission to Venus could search for.” Project Leadership. Sara Seager Well, we don’t have infinite resources, unfortunately, but it sure would be nice to see more spent on Venus. I think that life in Venus' clouds today is so unlikely that we'll find other chemical pathways of creating phosphine in the atmosphere ... ," said team-member Prof Sara Seager from MIT. Little did I realize Sara Seager playing three-dimensional chess here had this all cued up and ready to go for them when we got the announcement of phosphine on Venus. The temperate, habitable layer of Venus’ atmosphere as presented by Professor Sara Seager on 14 September 2020. Professor Sara Seager’s fascinating and thought-provoking talks explain, in layman’s terms, the exciting field of exoplanet research and the holy grail to find and identify an Earth-type planet. Sara Seager, una profesora de física y ciencia planetaria de MIT y miembro del equipo de investigación, lo planeta de la siguiente manera: “Podrían existir dos explicaciones: una en la que existe algún proceso químico desconocido que, de alguna manera, podría producir la fosfina. NASA has two Venus missions currently under review. Se la Professor Sara Seager is a planetary scientist and astrophysicist. “We are not claiming that we have found life on Venus,” said Sara Seager of MIT, also part of the discovery team. Authors: Sara Seager, Janusz J. Petkowski, Peter Gao, William Bains, Noelle C. Bryan, Sukrit Ranjan, Jane Greaves Download PDF Abstract: We revisit the hypothesis that there is life in the Venusian clouds to propose a life cycle that resolves the conundrum of how life can persist aloft for hundreds of millions to billions of years. We can get into this later on in the episode. But how do we find out for sure?! https://astronomycommunity.nature.com/users/394517-sara-seager We need to GO there. The field of exoplanets is maturing but still with huge unrealized potential. Dr. Seager noted that Venus is known to have a layer of haze. But all of this will take time. "While the surface conditions of Venus make the hypothesis of life there implausible, the clouds of Venus are a different story altogether." “I can’t overemphasise how fringe the whole idea of life on Venus was,” the astronomer Sara Seager said. I’m totally going to do a video about that. di ricerca, coordinato da Sara Seager, professoressa di scienze planetarie, fisica e ingegneria aerospaziale presso il Massachusetts Institute of Technology (MIT). “We are not claiming we have found life on Venus,” she said. So, Venus might have life! Sara Seager and collaborators found evidence of a chemical called phosphine in the atmosphere, something that could be explained by microbes living in the clouds of Venus. Comments (4) Japan's Akatsuki spacecraft captured this false-color image of Venus' dayside on March 30, 2018. Yet, due to a massive CO 2 greenhouse atmosphere, Venus’ scorching surface temperature of 700 K means no life could ever survive at the surface. Rocket Lab's Venus plans were in the works long before the company started talking to Seager and her colleagues, Beck said. Sara Seager is an astrophysicist and planetary scientist at MIT. Co-author Sara Seager says astronomers tried to figure out other, non-biological ways it could be produced but came up empty. Questo gruppo sarà formato da astronomi, astrobiologi, chimici e ingegneri da tutto il mondo e avrà lo scopo di esaminare la possibilità che ci sia vita su Venere. . “It’s very stable, and people don’t know what the particles there are, but they remain suspended for a very long time,” she said. I was like, oh, that’s such a cool idea. And so, I put it on my list of videos. It could take years or even decades to prove conclusively whether there is life in the Venusian clouds, Seager said. Sara Seager, a fellow MIT scientist who studies exoplanet atmospheres, agreed, saying "we are not claiming we have found life on Venus." 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