Solid grains ejected from terrestrial exoplanets as a probe of the abundance of life in the Milky Way

• Published in: International Journal of Astrobiology
• Main Author: Totani, Tomonori
• Format: Article in Journal/Newspaper
• Language: English
• Published: Cambridge University Press (CUP) 2023
• Subjects: Earth and Planetary Sciences (miscellaneous); Space and Planetary Science; Physics and Astronomy (miscellaneous); Ecology, Evolution, Behavior and Systematics; Antarctic; Milky Way; Antarc*
• Online Access: http://dx.doi.org/10.1017/s147355042300006x; https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S147355042300006X

Abstract Searching for extrasolar biosignatures is important to understand life on Earth and its origin. Astronomical observations of exoplanets may find such signatures, but it is difficult and may be impossible to claim unambiguous detection of life by remote sensing of exoplanet atmospheres. Here...