Travelers in the Night Eps. 853 & 854: Tardigrade & Weird Planet, Exotic Life

Dr. Al Grauer hosts. Dr. Albert D. Grauer ( @Nmcanopus ) is an observational asteroid hunting astronomer. Dr. Grauer retired from the University of Arkansas at Little Rock in 2006. travelersinthenight.org

From June, 2025.

Today's 2 topics:

- In the search for life on Mars, Europa, Titan, and elsewhere in the universe astro-biologists are scouring the Earth for creatures tough enough to flourish under really difficult conditions. So far the leading species are the Tardigrades commonly known as water bears or moss piglets.

- Data are consistent with the hypothesis that the planet K2-18b is a Hycean planet with a warm liquid water ocean teaming with life and a thin hydrogen rich atmosphere containing methane and other molecules containing carbon. Scientists in an opposing camp point out what we might be observing is a rocky world with a hot life killing atmosphere.

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