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Our research is featured in the most recent NASA Astrobiology Graphic Novel

6/24/2019

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Our work is featured in the most recent issue of NASA's Astrobiology Graphic Novel series on "Prebiotic Chemistry and the Origin of Life". From the NASA website:

Issue #7 of Astrobiology: The Story of our Search for Life in the Universe turns from telescopes to microscopes in order to examine the study prebiotic chemistry. Understand how life on Earth arose from chemical precursors is a core question of astrobiology, and essential in determining whether or not life could originate on other worlds. This issue delves into the rich scientific history of prebiotic chemistry, the role of NASA in supporting research since the early days of the agency, and the incredible discoveries that have been made in recent years.

​Read the full comic here.
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Alive Does Not Equal Life ...

6/24/2019

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... or at least that is what Prof Walker and SFI's Michael Lachmann argue in a new essay appearing in ​Aeon.  Read the essay here. 
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Emergence@ASU Lab members head to the Astrobiology science Conference

6/22/2019

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Four members of our research team are headed to the 2019 Astrobiology Science Conference to be held in Seattle WA, June 24 - 28th. 

Grad student Tessa Fisher will give a talk titled, "Atmospheric Chemical Reaction Network Topology as an Indicator of Disequilibrium: Implications for Biosignature Detection", abstract here. 

Grad student Dylan Gagler will present a poster titled,
"Investigating the role of oxidation-reduction reactions in biochemical network structure across levels of organization", abstract here. 

Assistant Research Prof. Hyunju Kim will present a talk titled, "Characteristic Chiral Nature of Hierarchical Biochemical Networks", abstract here. 

Professor Sara Walker will present two talks. The first is part of the plenary on 'Frontiers in Biosignature Science' on "Statistical Frameworks for Life Detection". The second is titled, "Intelligence as a Planetary Process", abstract here. 

In addition, lab alumni Dr. Harrison Smith (now at the Earth-Life Science Institute at Tokyo Tech) will present work he did while on our team, presenting a poster titled "Assessing the Viability of Biochemical Networks Across Planets", abstract here. 


ASU Alum Amanda Truitt also leads a poster titled "A Flexible Bayesian Framework for Assessing Habitability with Joint Observational and Model Constraints", abstract here, with Walker as a co-author. 

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Walker delivers seminar at carnegie geophysical lab

6/7/2019

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Prof. Walker will head to Carnegie Institution's Geophysical Laboratory to deliver a seminar, More details here. 

Monday, June 10, 2019 - 11:00
Event Host: 
Shaunna MorrisonDr. Sara Walker of ASU is an astrobiologist and theoretical physicist interested in the origin of life and how to find life on other worlds. She presented on "Planetary systems biochemistry - inferring the laws of life at a global scale."
Currently we do not know what life is, or whether there exist universal laws - in the same sense the laws of physics and chemistry are universal - that describe life. If we could understand the fundamental physics of life it would be possible to not only engineer the creation of de novo life in the lab, but also to provide better quantitative methods for identifying life on other worlds. In this talk I discuss new approaches to understanding what universal principles might underlie living matter, based on studying biochemical networks on Earth from the scale of individual organisms to the planetary scale.



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John Malloy to participate in SFI's Complex systems summer school

6/1/2019

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Graduate student John Malloy will participate in this year's Complex Systems Summer School sponsored by the Santa Fe Institute. The program offers an intensive 4-week introduction to complex behavior in mathematical, physical, living, and social systems, with lectures taught by the faculty of the Santa Fe Institute (SFI) and other leading educators and scholars. 
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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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