Sara Walker will participate in a panel discussion on "Possibilities for Non-Terran Life in the Universe" at the upcoming Breakthrough Discuss Conference, to be held Apr. 12-13th at Stanford University. The event will be live streamed, more information is available on the Breakthrough Discuss website.
'rInform', the R wrapper for the 'Inform' library, is now available for easy download using CRAN! As with the 'Inform' library, 'rInform' is structured around the concepts of: 1) discrete empirical probability distributions, which form the basis for all of the information-theoretic measures; 2) classic information-theoretic measures built upon empirical distributions; and 3) measures of information dynamics for time series. In addition to the core components, 'rInform' also provides a collection of utilities to manipulate time series.
Is biology governed by general organizing principles? New research by eLIFE members suggests that the answer is “yes”. Using a dataset that spans tens of thousands of organisms, and thousands of ecosystems, we find that life’s biochemical networks have features which are conserved across scales of biological organization (i.e. individuals, ecosystems and the biosphere). These features are distinct from random biochemical controls, and can predict whether a biochemical network belongs to an individual or ecosystem, or even a specific domain of life! These results suggest a logic to the planetary-scale organization of biochemistry, and have implications for the transition from a life-less Earth to the one we live on today! Check out the details in the newly updated bioRxiv paper: https://www.biorxiv.org/content/early/2018/03/03/212118
Sara Walker delivers a talk for the Astrobiology Science Strategy for the Search for Life in the Universe on the topic of "Systems Biosignatures" as part of the National Academies ad hoc committee public sessions. The full agenda for all public sessions are available here (including remote viewing options).
Sara Walker will be featured on "Ask an Astrobiologist" on Feb 28th at 10AM Pacific time. The live show is broadcast on SAGANet.org.
Three emergence@asu undergrads, Coral Ruiz, Angelica Berner and Kevin White, presented their research at the recent NASA Space Grant Poster session held on the ASU tempe campus on 2/14!
Below left: Coral Ruiz shows off her poster with Prof. Sara Walker. Below right: Angelica Berner and Coral Ruiz with their space grant posters!
Paul Davies was recently part of a panel discussion hosted by the New York Academy of Sciences titled "A Touch of Awe: Crafting Meaning from the Wonder of the Cosmos". Along with Paul, the event hosted panelists Ard Louis (theoretical physicist) and Lucianne Walkowicz (astrophysicist). The panel used their expertise to explain the state of modern cosmology and the nature of reality in order to examine the question of why we are here. If anyone is uniquely qualified to speculate on such matters, surely it is Paul.
To rewatch the livestream, click here.
Graduate students Dylan and Hikaru attended an immersive two-week winter school hosted by the Earth-Life Science Institute (ELSI) in Tokyo. This interdisciplinary program aimed to address the following questions:
At the winter school, attendees went on a 4-day field excursion throughout the Izu Peninsula to learn about the unique geology of Japan and how this geologic system, where subducting oceanic plates give rise to volcanic hot springs, may be a plausible analog for how life first emerged. Dylan and Hikaru heard lectures on a range of topics relevant to the origin of life including Prebiotic Chemistry and Large Deviation Theory. In addition, they participated in a research groups focusing on exoplanets (Dylan) and microbiology (Hikaru).
Sara Imari Walker