Detecting life outside our solar system with a large high-contrast-imaging mission

Snellen, Ignas A. G.; Snik, F.; Kenworthy, M.; Albrecht, S.; Anglada-Escudé, G.; Baraffe, I.; Baudoz, P.; Benz, W.; Beuzit, J.-L.; Biller, B.; Birkby, J. L.; Boccaletti, A.; van Boekel, R.; de Boer, J.; Brogi, Matteo; Buchhave, L.; Carone, L.; Claire, M.; Claudi, R.; Demory, B.‑O.; ... (2022). Detecting life outside our solar system with a large high-contrast-imaging mission. Experimental astronomy, 54(2-3), pp. 1237-1274. Springer 10.1007/s10686-021-09803-y

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In this White Paper, which was submitted in response to the European Space Agency (ESA) Voyage 2050 Call, we recommend the ESA plays a proactive role in developing a global collaborative effort to construct a large high-contrast imaging space telescope, e.g. as currently under study by NASA. Such a mission will be needed to characterize a sizable sample of temperate Earth-like planets in the habitable zones of nearby Sun-like stars and to search for extraterrestrial biological activity. We provide an overview of relevant European expertise, and advocate ESA to start a technology development program towards detecting life outside the Solar System.

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