Season 8 Episode 3: Project Hail Mary Science and Swedish Cat Laws

Season 8 Episode 3: Project Hail Mary Science and Swedish Cat Laws

March 7, 2026 · 27 min · Season 8 · Episode 3

About this episode

The episode explores the science behind Project Hail Mary and discusses the implications of deep space travel on human biology.

Send us Fan Mail Think space is fast? Try outrunning time. We kick off with a clear-eyed breakdown of Project Hail Mary’s core science. Using the Parker Solar Probe as our real-world speed limit, we map the math of interstellar distances to compare to the ability for Ryan Gosling to get to Tau Ceti in Project Hail Mary. Then we turn to biology’s unforgiving rules. Could a years-long medically induced coma carry a crew through deep space? We explain how coma differs from sleep, why weeks mark...

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