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Travelers in the Night Eps. 375 & 376: Extraterrestrial Whales & Tiny Space Rock

Travelers in the Night Eps. 375 & 376: Extraterrestrial Whales & Tiny Space Rock

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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 February 2026.

Today's 2 topics:

- In an area which is about 1/400th of the entire sky, the NASA
Kepler spacecraft has discovered 30 Earth like planets which are
likely to have liquid water on their surfaces orbiting distant
stars. These planets are likely to represent a tiny sample of the
habitable planets which exist in the Milky Way. In spite of our
efforts to find them, the question remains where are the alien
civilizations? In a recent talk given at the Division of
Planetary Sciences meeting Dr. Alan Stern of the
Southwest Research Institute suggests that perhaps the majority
of worlds with biology and intelligent civilizations exist on
interior water ocean worlds where their existence is hidden by
the thick layers of rock and ice which separate them from the
hostile vacuum of space.

 

- Eighteen hours before my Catalina Sky Survey teammate
Rose Matheny first spotted 2017 UJ2, a small
space rock with our Schmidt telescope on Mt. Bigelow, Arizona it
had passed less than the Earth's diameter from the surface of our
planet. Rose was able to discover this Smart Car sized space rock
after it moved out of the Sun's glare. At this point it was about
the Moon's distance from her and was traveling away at 3.4 mi/s.
After Rose posted her discovery observations on the Minor Planet
Center's Near Earth Object Confirmation page, for the next 24
hours it was tracked by telescopes in Spain, Illinois, and
Arizona.

 

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„Travelers in the Night Eps. 375 & 376: Extraterrestrial Whales & Tiny Space Rock“

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