Science Magazine Podcast

Tickling in review, spores in the stratosphere, and longevity research

May 29, 2025
Michael Greshko, Online News Editor for Science Magazine, shares fascinating insights on capturing fungal spores in the stratosphere and the search for life signs on exoplanet K2-18b. Konstantina Kilteni, a neuroscientist, discusses the complex science of tickling and how it varies among individuals. Finally, Nobel Prize-winning biologist Venki Ramakrishnan dives into longevity research, exploring the science of aging and the quest for immortality, as detailed in his book.
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INSIGHT

Fungal Spores Survive Stratosphere

  • Fungal spores can survive extreme conditions high up in the stratosphere over 10 km above Earth.
  • This ability may help explain how fungal pathogens travel globally, and new costing-effective sampling methods have revealed great fungal diversity there.
INSIGHT

Exoplanet Life Signs Debated

  • Detecting signs of life on exoplanet K2-18b involves interpreting faint atmospheric signals that can be ambiguous.
  • Disputes remain on whether its atmosphere is water-rich or a lava world, highlighting challenges in remote life detection.
INSIGHT

Dating Ancient Star Catalogs

  • The age of the Chinese Star Manual of Shishen is disputed due to compilation history and instrument limitations.
  • Precession of Earth's axis enables dating star coordinates, but debate remains over instrument alignment and catalog origins.
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