Episode 104 – Megastructures (Part I)! – is now Live!
This past week, I did an episode that is long overdue! In truth, I can’t possibly explain why I’ve neglected it for so long. The subject at hand… MEGASTRUCTURES! Honestly, this is like one of my top five favorite topics and specialties when it comes to space, science fiction, and the Search for Extraterrestrial Intelligence (SETI). Yet here we are, three years (happy third anniversary, Stories from Space!) and more than 100 episodes later, and I find out I haven’t done an episode dedicated to this lovely topic.
The story begins with Freeman Dyson, the famed British-American theoretical physicist and mathematician. In 1960, he wrote a paper outlining how advanced civilizations, in their drive to find more living space and energy, would someday convert their planets into artificial biospheres that would enclose their entire star. This became known as a Dyson Sphere, a concept that spawned an entire field of study. Decades later, there are innumerable proposed concepts, all of which were proposed to help constrain SETI searches.
Similar to Nikolai Kardashev‘s paper (released a few years later), in which he proposed what is now known as the Kardashev Scale, Dyson’s proposed structure was a means of suggesting the kind of technological signatures that SETI researchers should be looking for. Thanks to him, SETI researchers are not only looking for evidence of transmissions in the cosmos, but also evidence of planetary engineering. Given the richness of this topic, this episode is part of a series that may (as I hope) run for three episodes. Check it out!
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