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Proceedings Paper

When did Earth appear habitable?
Author(s): Gregory A. Konesky
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Paper Abstract

The rapidly accelerating rate of discovery of exoplanets has been dubbed the “golden age of discovery” of these planets, with an increasing number approaching Earth-like terrestrial planets, in habitable zones. Improving capability of both ground-based and space-based instrumentation permits the examination of a given exoplanet’s transmission and reflectance spectra that may hold clues to a habitable environment, and possibly, an indication of extraterrestrial life. To provide a context for assessing these clues, we consider how Earth would have appeared to an observer at interstellar distances, and how this appearance would have changed from shortly after its formation, to the present.

Paper Details

Date Published: 15 October 2012
PDF: 6 pages
Proc. SPIE 8521, Instruments, Methods, and Missions for Astrobiology XV, 85210G (15 October 2012); doi: 10.1117/12.927246
Show Author Affiliations
Gregory A. Konesky, K-Plasma Ltd. (United States)

Published in SPIE Proceedings Vol. 8521:
Instruments, Methods, and Missions for Astrobiology XV
Richard B. Hoover; Gilbert V. Levin; Alexei Yu. Rozanov; Paul C. W. Davies, Editor(s)

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