1. Exoplanet Biosignatures Workshop Without Walls

    Workshop Without Walls: Exoplanet Biosignatures

    The NASA Nexus for Exoplanet System Science (NExSS) and Astrobiology Program are hosting an Exoplanet Biosignatures Workshop Without Walls to review, frame, and advance the science and technology of remotely detectable biosignatures for the search for life on planets around other stars.

    Exoplanet Biosignatures Workshop Without Walls

    A NExSS & NASA Astrobiology Program Joint Workshop
    Pre-workshop online activities to commence: June 13, 2016
    In-person workshop (and online broadcast): July 27 - 29, 2016, Seattle, WA

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    Click here for the latest agenda.

    Click here for information on how to participate remotely.

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    Science Organizing Committee:
    Daniel Apai (University of Arizona, USA)
    Gary Blackwood (JPL/ExEP, USA)
    Shawn Domagal-Goldman (NASA GSFC, USA)
    Yuka Fujii (ELSI, Japan, and NASA GISS, USA)
    Lee Grenfell (DLR, ESA, Germany)
    Nancy Y. Kiang (NASA GISS, USA)
    Adrian Lenardic (Rice University, USA)
    Nikole Lewis (STSci, USA)
    Tim Lyons (University of California, Riverside, USA)
    Hilairy Hartnett (Arizona State Univ., USA)
    Bill Moore (Hampton University, USA)
    Enric Palle (Instituto de Astrofísica de Canarias, Spain)
    Niki Parenteau (SETI / NASA ARC, USA)
    Heike Rauer (DLR, ESA, Germany)
    Karl Stapelfeldt (NASA GSFC/JPL, USA)
    Sara Walker (Arizona State University, USA)

    Future exoplanet observations will soon focus on the search for life beyond the Solar System. Biosignatures to be sought are those with global, potentially detectable, impacts on a planet. Biosignatures occur in an environmental context in which geological, atmospheric, and stellar processes and interactions may work to enhance, suppress or mimic these biosignatures. Thus biosignature science is inherently interdisciplinary. Its advance is necessary to inform the design of the next flagship missions that will obtain spectra of habitable extrasolar planets.

    This Exoplanet Biosignatures Workshop will bring together the astrobiology, exoplanet, and mission concept communities to review, discuss, debate, and advance the science of biosignatures. This process will engage a broad range of experts by merging the interdisciplinary reaches of NExSS, the NASA Astrobiology Institute (NAI), NASA’s Exoplanet Exploration Program (ExEP), and international partners, such as the European Astrobiology Network Association (EANA) and Japan’s Earth Life Science Institute (ELSI). Between these groups, we will have expertise in astronomy, planetary science, Earth sciences, heliophysics, biology, instrument/mission development, and engineering.

    The workshop will gather these communities in the pursuit of three goals:

    1. State of the Science Review:
    What are known remotely-observable biosignatures, the processes that produce them, and their known non-biological sources?

    2. Advancing the Science of Biosignatures:
    How can we develop a more comprehensive conceptual framework for identifying additional biosignatures and their possible abiotic mimics?

    3. Confidence Standards for Biosignature Observation and Interpretation:
    What paradigm informed by both scientists and technologists could establish confidence standards for biosignature detection?

    The 3-day in-person workshop will be coordinated with pre-workshop online activities to summarize the state of the science of exoplanet biosignatures. This review will provide background for the in-person workshop, which will focus on advancing the science of biosignatures, and understanding the technological needs and capabilities for their detection. This information will be exchanged with the Science Technology Definition Teams (STDTs) of upcoming planet-observing missions.

    The in-person workshop will include plenary talks to set the stage for small group discussions, which will focus addressing key science questions identified by the Science Organizing Committee. The intent is for the workshop to be highly interactive. The meeting agenda will be posted online approximately 1 month prior to the workshop.

    Outputs from this workshop will include summary reports, which will be circulated to the community for feedback. These reports will be filed with a dedicated Exoplanet Biosignatures Study Analysis Group (SAG 16) of the Exoplanet Exploration Program Analysis Group (ExoPAG).

    Participation is limited to 31-35 in-person attendees in Seattle, but online participants will be unlimited for all activities. To register for either the in-person workshop or as a remote participant, please fill out our survey.


    Pre-workshop online activities

    Start date: June 13, 2016
    Meeting time: Meetings will be held twice a week at different times to ensure maximum participation from international participants
    Meeting length: 75 minutes

    Theme 1: State of the science review

    Meeting 1: June 13 at 13:00 EDT and June 16/17 at 19:00 EDT/8:00 JST
    Topic: Review biosignatures described in Des Marais et al., 2002.
    Goal/work session: After presentation, fill in rubric recording characteristics of biosignatures described in the review.

    Meeting 2: Week of June 27 - June 30/July 1, time TBD
    Topic: Discuss advances in biosignature research since 2002 review.
    Goal/work session: Continue to fill in rubric with published atmospheric and surface biosignature research since 2002.

    Meeting 3: Week of July 11 - 14/15, time TBD
    Topic: History of observation technologies
    Goal/work session: TBD

    In-person workshop (and online broadcast)
    Dates: July 27 - 29, 2016
    Location: Seattle, WA

    Theme 1: State of the science - Review of the Pre-Workshop Activities

    Theme 2: Making new frameworks for biosignature science

    Theme 3: Developing evaluation/interpretation standards/goals for observing biosignatures

    Remote Participation

    All of our Workshops Without Walls strive to be all-inclusive and as interactive as possible for both in-person and remote attendees.

    Remote participation instructions for the in-person workshop are coming soon...

    What is NExSS?

    NExSS is a coordinating body formed in 2015 whose goal is to foster an interdisciplinary network of researchers spanning astrophysics, planetary science, and the biogeosciences, within the Solar System and beyond, who, through inclusive community activities and cross-discipline collaboration, seek to advance exoplanet science and discovery, and the search for life in the Universe.