529 citations · 1.4k across the 6 of their papers we have counts for
6 papers
Early evolution of purple retinal pigments on Earth and implications for exoplanet biosignatures
Shiladitya DasSarma, Edward W. Schwieterman
We propose that retinal-based phototrophy arose early in the evolution of life on Earth, profoundly impacting the development of photosynthesis and creating implications for the se…
Exoplanet Biosignatures: Understanding Oxygen as a Biosignature in the Context of Its Environment
Victoria S. Meadows, Christopher T. Reinhard, Giada N. Arney +13
Here we review how environmental context can be used to interpret whether O2 is a biosignature in extrasolar planetary observations. This paper builds on the overview of current bi…
Exoplanet Biosignatures: Future Directions
Sara I. Walker, William Bains, Leroy Cronin +11
Exoplanet science promises a continued rapid accumulation of new observations in the near future, energizing a drive to understand and interpret the forthcoming wealth of data to i…
Exoplanet Biosignatures: A Framework for Their Assessment
David C. Catling, Joshua Krissansen-Totton, Nancy Y. Kiang +7
Finding life on exoplanets from telescopic observations is an ultimate goal of exoplanet science. Life produces gases and other substances, such as pigments, which can have distinc…
Exoplanet Biosignatures: A Review of Remotely Detectable Signs of Life
Edward W. Schwieterman, Nancy Y. Kiang, Mary N. Parenteau +15
In the coming years and decades, advanced space- and ground-based observatories will allow an unprecedented opportunity to probe the atmospheres and surfaces of potentially habitab…
Detection of circular polarization in light scattered from photosynthetic microbes
William B. Sparks, James Hough, Thomas A. Germer +9
The identification of a universal biosignature that could be sensed remotely is critical to the prospects for success in the search for life elsewhere in the universe. A candidate…