Exobiology / speculative biology has unofficially existed as a field ever since humans looked upward and wondered. It’s only recently (relatively at least) that we’ve learned enough about conditions on other planets to actually factor scientific reality into our fictioneering. Rather than putting constraints on the imagination, though, this has merely challenged it to do better.
“The Teeming Universe,” by Christian Cline, is proof of this. It features a short introduction on astronomy and biology, their history and cutting edge. Shortly thereafter it begins exploring the universe, the exoplanets and the exotic, sometimes dangerous life that exists there. No explanation of superluminary travel is given, but that’s not a problem, as this book deals with destinations, not the journey.
Each planet featured includes a short introduction of its place in its own galaxy, the kind of star it orbits, whether it possesses moons or protoplanetary satellites. Details about density, core, gravity and atmospheric conditions are also included. Yes, it’s all speculative, but it never veers wholly into the realm of fantasy, even when it’s fantastic.
Then it’s down to the surface, with each organism not only getting its own taxonomic handle, but a good diagramming of its morphology. Cline is more skilled with images than words, but I’m not complaining. The illustrations, while not as good as Wayne Barlow’s seminal and fantastic offerings in the field, are still beautiful.
If forced to choose my personal favorite selection from the book, I’d go with Craelon, a noxious brown orb of a planet that looks a bit like the Death Star. It turns out that this planet has been colonized by a nonhuman intelligence, which is also self-replicating and has intentions of spreading to other star systems. The conception of this race (or viral outgrowth of some race they have either replaced or abandoned) borrows elements from everything from Rendezvous with Rama to the Borg of Star Trek. They also use something like the proposed “Dyson Sphere” (called here a “Dyson Shield”) which is intended to harness the power of solar fusion from main sequence stars, at the source rather than at a distance.
Sometimes people complain that the alien creatures we imagine aren’t alien enough. My personal feeling is that such people don’t understand enough about convergent evolution, and natural selection’s eschewing hyper-complexity, but whatever. In the Craelon (and a couple other races) we get the incomprehensibly alien, the kind of implacable and geometrically perfect and unanswerable intelligence that poor Astronaut Bowman saw on his deathbed in 2001. It'd be nice if the steely creations of Craelon were to eventually merge together into a giant “Star Child” as “Also Sprach Zarathustra” played on the soundtrack, as in A Space Odyssey. More likely, though, it looks like these guys are harbingering our demise, assuming they can borrow the spice to fold space, find a tractable wormhole, master quantum entanglement, or otherwise take a shortcut to the Milky Way to enslave us pathetic meat bags. Couldn’t be much worse than whatever Musk and Bezos and the rest of the “Space Barons” have planned for us.
Really cool book, regardless. Recommended.