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| Paper: |
Biosignatures Discussion Panel |
| Volume: |
543, HWO25 Proceedings Part II: Mission Framework, Technology, and Broader Contributions |
| Page: |
9 |
| Authors: |
Victoria Meadows, Niki Parenteau, and Giada Arney |
| DOI: |
10.26624/WCDP3673 |
| Abstract: |
The Biosignatures Discussion Panel examined the National Academy of Sciences Astrophysics 2020 Decadal Survey recommendation to search for signs of life on exoplanets, assessed how an ambitious observatory would be needed to achieve those goals, and discussed how astrobiology research can guide the design and technology priorities of NASA’s Habitable Worlds Observatory (HWO). The panel was also intended to bring together science and technologists for a dialog on emerging technologies that could enable the visionary science required to search for life on exoplanets. Science panelists emphasized that reliable life detection requires broad-wavelength spectral observations and contextual environmental understanding to distinguish true biosignatures from abiotic false positives. Science cases highlighted the importance of studying Earth’s evolutionary stages—from Archean methane–COz_2z atmospheres to Proterozoic low-oxygen environments—to inform spectral requirements across ultraviolet, visible, and near-infrared bands. The discussion also explored emerging technologies, including advanced coronagraphs, wavefront control, and photonic optics, to enhance contrast and reduce inner working angles for exoplanet imaging. Collectively, visionary science working in tandem with emerging technologies will position HWO to advance the search for habitable worlds, and provide the data needed to detect and interpret potential signs of life on exoplanets. |
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