Travelers in the Night Eps. 373 & 374: Tracking 3I/Atlas & Good Night at Bok

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 October & November, 2025

Today's 2 topics:

- Scientists are using many approaches to understanding the nature and history of 3I/Atlas the third known interstellar traveler in the night. At a hyperbolic velocity of 130,000 mph it is the fastest interstellar visitor ever measured.

 

- On a recent clear night my Catalina Sky Survey teammate Hannes Groller was asteroid hunting with the Steward Observatory 90 inch Bok telescope on Kitt Peak, Arizona when he discovered 8 natural visitors to our neighborhood. Telescopes around the world began to track and determine the natures these asteroids. Six of Hannes's discoveries are classified as Near Earth Objects while the other two are more distant Mars crossing asteroids.

 

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