Everybody, the Astrobiology Primer version 2.0 is online. I have been looking forward to this moment since 2009, when I encountered the first version of the Primer. I found it helpful and engaging, and I wondered when an update would come along. You see, I love what the Astrobiology Primer does. I love how the Primer is created. And I love why the Primer exists.
Longer than a science article but shorter than a textbook, the Astrobiology Primer presents a summary of astrobiology. It is an introduction written for a broad audience, especially for young scientists and just generally curious people who like to think about science.
The Primer proceeds through a series of questions—awesome and epic questions that have always preoccupied humankind: What is life? How did Earth form? What do we know about the possibility of life beyond Earth? Of course, we have so much further to go to answer these questions. Yet it is amazing to realize how much we do know. The Primer provides a starting point for discussing current knowledge and introducing new realms of research.
What makes this project particularly rewarding is the people behind it. The Primer is written by graduate students and postdoctoral researchers. It represents the future of astrobiology, with enthusiasm and fresh perspectives. It means a lot to me that the journal I work for can support these newcomers. And I admire the authors for successfully bringing together topics as diverse as planetary accretion, phylogenetic trees, and the presence of methane on Mars; forming these topics into a clear and consistent narrative; and persisting through all the reviews, proofs, and final touches of the publishing process.
In conclusion, a word of praise to astrobiology. I love it so. A diverse collection of disciplines (geology, biology, astrophysics, chemistry, engineering, philosophy, climatology, sedimentology—to name just a few) converges to address the most essential questions. Who are we? How did we get here? Are we alone? How can we find and communicate with others? Astrobiology is microcosm and macrocosm. It is the very ground we walk on, and it is the farthest reaches of space. It is our past and our future.
So read the Astrobiology Primer! It is available for free download! Right now: http://online.liebertpub.com/doi/abs/10.1089/ast.2015.1460