Gaia hypothesis

Book review – Life in the Cosmos: From Biosignatures to Technosignatures

8-minute read

Are we alone in the universe? For the moment, this question remains unanswered, though there are many ways to tackle it. Just how many was something I did not appreciate until I sunk my teeth into Harvard University Press’s new flagship astronomy title Life in the Cosmos. Written by astrobiologist Manasvi Lingam and theoretical physicist Abraham “Avi” Loeb, this is a book of truly colossal proportions, clocking in at over 1000 pages. It boldly goes where few academic books have gone before by seriously and open-mindedly considering the possibility of extraterrestrial technological intelligence on par with, or far beyond humans. I found myself gravitating towards this book on account of more than just its size.

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Book review – Islands of Abandonment: Life in the Post-Human Landscape

7-minute read

When humans abandon a place, nature comes rushing back in. Dotted around our planet are numerous areas now devoid of human habitation: ghost towns, conflict zones, pollution hotspots, and areas wrecked by natural forces. Author and journalist Cal Flyn explores thirteen such locations and here reports their sights, sounds, and smells. Surprisingly rich in ecological and biological detail, Islands of Abandonment is a poetic and spellbinding travelogue. A dark howl of decay and human hubris, shot through with the inevitable rebirth of nature, this book haunted me long after I finished it.

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Book review – Alien Oceans: The Search for Life in the Depths of Space

8-minute read

This is the second of a two-part dive into the story of oceans on Earth and elsewhere, following my review of Ocean Worlds. That book gave a deep history of how our oceans shaped Earth and life on it and briefly dipped its toes into the topic of oceans beyond Earth. Alien Oceans is the logical follow-up. How did we figure out that there are oceans elsewhere? And would such worlds be hospitable to life? Those are the two big questions at the heart of this book. If there is one person fit to answer them, it is Kevin Peter Hand, a scientist at NASA’s Jet Propulsion Laboratory and their deputy chief for solar system exploration.

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Book review – The Seneca Effect: Why Growth is Slow but Collapse is Rapid

I am going to start this review on a tangent. The liner notes of the 1983 album Zeichnungen Des Patienten O.T. of the German industrial band Einstürzende Neubauten contained the slogan “Destruction is not negative, you must destroy to build”. I don’t expect that Ugo Bardi shares my taste in music, but, judging from this book, I’m sure that if we were to sit him down with the band members over a pint, they would have plenty to talk about. Because, according to Bardi, collapse is a feature, not a bug.

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Book review – Planet of Microbes: The Perils and Potential of Earth’s Essential Life Forms

What unites deep subterranean caves, hydrothermal vents in the deep sea, our guts, cloud formation, geochemical processes, and astrobiology (the search for life beyond our planet) to name but a few things? Microbes. The tiny, single-celled organisms that we cannot see with the naked eye are everywhere. With Planet of Microbes, Ted Anton makes the point that this world is really theirs, and takes the reader on a tour of the rapid increase in our understanding of their importance, focusing on three major subjects.

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