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Congrats to Dr. Mathis!

6/28/2018

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Huge congratulations to our very own Cole Mathis for successfully defending his PhD Dissertation "On the Origin of the Living State". We are so proud of you and all your accomplishments and can't wait to see where your career takes you! 
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How Theoretical physics can help find ET - Interview with Sara Walker

6/28/2018

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Sara Walker is featured in an article on Space.com highlighting the role of theoretical physics in helping discover alien life. 

"When I think about looking for life, I'm not really thinking about looking for cells on a planet or molecules in an atmosphere. I think about looking for an entirely new sector of physics," Sara Walker, an astrobiologist and theoretical physicist at Arizona State University, said during a panel discussion at the World Science Festival in New York City. 

Read more here. 
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Exoplanet Biosignatures: The Dawn of a new Era

6/25/2018

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A collection of papers summarizing the state-of-art in exoplanet biosignature research were published in this month's issue of the journal Astrobiology. ​Emergence@ASU members Tessa Fisher, Harrison Smith and Sara Walker are authors on three of the papers. 

Learn more about the full story on ASU Now. More press coverage is available here, here and here. 

Read the full set of papers at Astrobiology. 
Papers including Emergence@ASU authors:

S.I. Walker, W. Bains, L. Cronin, S. DasSarma, S. Danielache, S. Domagal-Goldman, B. Kacar, N.Y. Kiang, A. Lenardic, C.T. Reinhard, W. Moore, E. Schwieterman, E. Shkolnik and H.B. Smith* (2018) Exoplanet biosignatures: future directions. Astrobiology, 18(6), pp.779-824. https://doi.org/10.1089/ast.2017.1738 

N.Y. Kiang, S. Domagal-Goldman, D.C. Catling, Y. Fuji, V.S. Meadows, E. Schwieterman and S.I. Walker (2018) Exoplanet Biosignatures: At the Dawn of a New Era of Planetary Observations. Astrobiology 18(6) 619-629  http://doi.org/10.1089/ast.2018.1862

​E.W. Schwieterman, N.Y. Kiang, M.N. Parenteau, C.E. Harman, S. DasSarma , T.M. Fisher*, G.N. Arney, H.E. Hartnett, C.T. Reinhard, S.L. Olson, V.S. Meadows, C.S. Cockell, S.I. Walker, J.L. Grenfell, S. Hegde, S. Rugheimer, R. Hu, and T. W. Lyons (2018) Exoplanet Biosignatures: A Review of Remotely Detectable Signs of Life. Astrobiology 18(6): 663 - 708 http://doi.org/10.1089/ast.2017.1729
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Network representation of Earth's atmosphere from "Exoplanet biosignatures: Future directions" led by Prof. Walker.
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Science stories from Frankenstein: Organization from chaos

6/10/2018

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A new, seven part animated series explores the lasting impact of Mary Shelley's Frankenstein. Episode two explores the topic "What is life?" and features our own Sara Walker! The episode is below, other episodes in the series are available here. 

Organization from Chaos // Reanimation! Science Stories about Frankenstein EP2 from MassiveSci on Vimeo.

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Who is out there: why alien 'life' might be weirder than we imagine

6/10/2018

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Video of the World Science Festival panel "Who is Out There: Why Alien 'Life' may be Weirder than we Imagine" is now available! The panel features Sara Walker, along with astronaut Nicole Stott, astronomer Lisa Katlenegger, astrobiologist Caleb Scharf, and philosopher Susan Schneider. Check it out at the link below!
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Hikaru Furukawa presents at AbGradCon 2018 on Agency-steered ecosystems

6/9/2018

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(PhD student Hikaru Furukawa delivered a talk at this year's astrobiology graduate student conference titled "Agency Steered Ecosystems on Planetary Bodies"! A recording of her talk is available here (last talk in the session). 
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Sara Walker and Harrison Smith AtTend Deep-time Data Driven Discovery Workshop

6/4/2018

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For the next three days (June 4-6), Sara Walker and Harrison Smith will be attending the 4D Workshop: Deep-time Data Driven Discovery and the Evolution of Earth. This unique interdisciplinary workshop focuses on a data-driven approach to understanding the history of our biosphere. Using big data analysis techniques such as network theory, the workshop addresses the following questions:
  • What was the geological and geochemical context for life’s origins?
  • Did biological catalysis follow from the chemistry of rocks and minerals?
  • How did Earth’s earliest microbial life interact with and influence the geosphere?
  • How did plate tectonics begin and to what extent are Earth’s surface and deep interior linked?
  • When, and at what rate, did photosynthesis modify our planet’s near-surface environment?
  • How did life’s subsequent complexification and migration to land alter geological and geochemical processes?
To follow along with the conference, visit the livestream link.
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Carbon mineral-locality network. Mineral nodes colored by age (Ma) and sized by frequency of occurrence on Earth’s surface; locality nodes (black) sized by mineral diversity. (Image source: https://www.4d-workshop.net/about)
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    Sara Imari Walker

    Assistant Professor
    Beyond Center for Fundamental Concepts in Science and the School of Earth and Space Exploration at Arizona State University

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