Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas

92 | Kevin Hand on Life Elsewhere in the Solar System

Apr 13, 2020
In this engaging discussion, Kevin Hand, a NASA planetary scientist and astrobiologist, explores the tantalizing potential for life on icy moons like Europa and Titan. He delves into the challenges of studying these enigmatic worlds and discusses innovative missions like the Europa Clipper. Hand explains how chemical processes may lead to life's emergence, while sharing insights on the necessity of examining extreme Earth environments for clues. His expertise illuminates the fascinating interplay of geology and biology in the search for extraterrestrial life.
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ANECDOTE

Antarctica Test

  • Kevin Hand recently tested an under-ice robotic vehicle in Antarctica.
  • This vehicle is a prototype for exploring Europa's subsurface ocean.
INSIGHT

Europa's Ice Thickness

  • Europa's ice shell is estimated to be 5 kilometers thick, much thicker than Antarctic ice.
  • Getting through Europa's ice to explore the ocean is a significant challenge.
INSIGHT

Europa's Ocean Evidence

  • Evidence suggests Europa has a subsurface ocean.
  • Spectroscopy confirms Europa's surface is water ice.
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