Are We Alone?
by Gregg Easterbrook
Publisher: The Atlantic Monthly 1988
Scanning the universe to see if we have company has fallen out of favor among many scientists, but the true believers who continue to search raise diverting questions -- like why planets form where they do, and how life began, and where we might end up.
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by G. Gonzalez, D. Brownlee, P. Ward - arXiv
The GHZ is that region in the Milky Way where an Earth-like planet can retain liquid water on its surface and provide a long-term habitat for animal-like aerobic life. In this paper we examine the dependence of the GHZ on Galactic chemical evolution.
by Philip Morrison, John Billingham, John Wolfe - NASA
In the late twentieth century, scientists converged upon the basic idea of scanning the sky and 'listening' for non-random patterns of electromagnetic emissions in order to detect another possible civilization somewhere else in the universe.
by Mike Corwin - Bookboon
A textbook intended for a one-semester course in Astronomy. After introductory chapters on the history of astronomy, it is narrowly focused on material directly and chronologically related to the eventual rise of conscious beings in the universe.
by Michael Meltzer - NASA
This book presents the history of planetary protection by tracing the responses to the microbiological contamination concerns on NASA's missions to the Moon, Mars, Venus, Jupiter, Saturn, and many smaller bodies of our solar system.