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

Today's 2 topics:

- The first alien object to observed visiting our solar system arrives from truly deep space and leaves us with the mystery of what it is and how it got that way.

- Intriguing features which change with the Martian seasons mimic flows of liquid water on the Earth's surface.

 

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