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4 papers

astro-ph.IM2026

Early Exploration of the Scientific Discovery Space for the Habitable Worlds Observatory

Courtney D. Dressing, Danica Adams, Evelyne Alecian +324

The paper summarizes 70 science cases for the proposed NASA Habitable Worlds Observatory, outlining the observational needs across four scientific pillars and detailing required ca…

astro-ph.EP2026

The effect of spectral resolution on biosignature detection via reflected light observations of the Earth through time

Samantha Gilbert-Janizek, Jacob Lustig-Yaeger, Joshua Krissansen-Totton

NASA's Habitable Worlds Observatory (HWO) will search for biosignatures on Earth-like exoplanets using reflected light spectroscopy. A critical instrument design parameter is resol…

astro-ph.EP2026

A whole-planet model of the Earth without life for terrestrial exoplanet studies

Samantha Gilbert-Janizek, Rory K. Barnes, Peter E. Driscoll +5

As the only known habitable (and inhabited) planet in the universe, Earth informs our search for life elsewhere. Future telescopes like the Habitable Worlds Observatory (HWO) will…

astro-ph.EP2025

Wavelength Requirements for Life Detection via Reflected Light Spectroscopy of Rocky Exoplanets

Joshua Krissansen-Totton, Anna Grace Ulses, Maxwell Frissell +21

Searching for signs of life is a primary goal of the Habitable Worlds Observatory (HWO). However, merely detecting oxygen, methane, or other widely discussed biosignatures is insuf…