activity
20192026
most citedPhosphine Gas in the Cloud Decks of Venus

268 citations · 1.3k across the 43 of their papers we have counts for

collaborators

43 papers

astro-ph.EP2026

The Viability of Life in Helium-Dominated Exoplanet Atmospheres

Sara Seager, Janusz J. Petkowski

Helium is the second most abundant element in the Universe, yet helium-dominated atmospheres are rarely considered as environments for life. Two assumptions have contributed to thi…

astro-ph.EP2026

Ionic Liquid Biospheres

Sara Seager, William Bains, Iaroslav Iakubivskyi +4

Liquid is a fundamental requirement for life as we understand it, but whether that liquid has to be water is not known. We propose the hypothesis that ionic liquids (ILs) and deep…

astro-ph.EP2025★ 4 cited

Warm, water-depleted rocky exoplanets with surface ionic liquids: A proposed class for planetary habitability

Rachana Agrawal, Sara Seager, Iaroslav Iakubivskyi +6

The discovery of thousands of exoplanets and the emergence of telescopes capable of exoplanet atmospheric characterization have intensified the search for habitable worlds. Due to…

astro-ph.EP2025★ 3 cited

The Diversity of Exoplanetary Environments and the Search for Signs of Life Beyond Earth

Sara Seager, Janusz J. Petkowski, William Bains

Thousands of exoplanets orbit nearby stars, showcasing a remarkable diversity in mass, size, and orbits. With the James Webb Space Telescope now operational, we are observing exopl…

astro-ph.EP2025

A Model of UV-Blue Absorbance in Bulk Liquid of Venusian Cloud Aerosols Is Consistent with Efficient Organic Absorbers at High Concentrations

Jan Spacek, Yeon J. Lee, Paul B. Rimmer +1

At visible wavelengths, Venus appears serene and pale-yellow, but since the 1920s, observers have noted high-contrast features in the ultraviolet. These features track the about 4-…

astro-ph.EP2025★ 13 cited

Prospects for Detecting Signs of Life on Exoplanets in the JWST Era

Sara Seager, Luis Welbanks, Lucas Ellerbroek +2

The search for signs of life in the Universe has entered a new phase with the advent of the James Webb Space Telescope (JWST). Detecting biosignature gases via exoplanet atmosphere…