529 citations · 3.3k across the 66 of their papers we have counts for
8 papers · 1 filter
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…
Atmospheric Seasonality as an Exoplanet Biosignature
Stephanie L. Olson, Edward W. Schwieterman, Christopher T. Reinhard +4
Current investigations of exoplanet biosignatures have focused on static evidence of life, such as the presence of biogenic gases like O2 or CH4. However, the expected diversity of…
Exoplanet Science Priorities from the Perspective of Internal and Surface Processes for Silicate and Ice Dominated Worlds
Wade G. Henning, Joseph P. Renaud, Avi M. Mandell +35
The geophysics of extrasolar planets is a scientific topic often regarded as standing largely beyond the reach of near-term observations. This reality in no way diminishes the cent…
Earth: Atmospheric Evolution of a Habitable Planet
Stephanie L. Olson, Edward W. Schwieterman, Christopher T. Reinhard +1
Our present-day atmosphere is often used as an analog for potentially habitable exoplanets, but Earth's atmosphere has changed dramatically throughout its 4.5 billion year history.…
Surface and Temporal Biosignatures
Edward W. Schwieterman
Recent discoveries of potentially habitable exoplanets have ignited the prospect of spectroscopic investigations of exoplanet surfaces and atmospheres for signs of life. This chapt…
Exoplanet Diversity in the Era of Space-based Direct Imaging Missions
Ravi Kopparapu, Eric Hebrard, Rus Belikov +55
This whitepaper discusses the diversity of exoplanets that could be detected by future observations, so that comparative exoplanetology can be performed in the upcoming era of larg…
The Importance of UV Capabilities for Identifying Inhabited Exoplanets with Next Generation Space Telescopes
Edward Schwieterman, Christopher Reinhard, Stephanie Olson +1
The strongest remotely detectable signature of life on our planet today is the photosynthetically produced oxygen (O2) in our atmosphere. However, recent studies of Earth's geochem…
The Astrobiology of the Anthropocene
Jacob Haqq-Misra, Sanjoy Som, Brendan Mullan +9
Human influence on the biosphere has been evident at least since the development of widespread agriculture, and some stratigraphers have suggested that the activities of modern civ…