Travelers in the Night - Eps. 499 & 500: Oppy & Why Look


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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.

Today's 2 topics:

- Along Oppy's 28 mile long discovery journey on the surface of Mars the tough rover has accumulated a wealth of scientific information on Martian geology and the red planet's thin atmosphere.

- In 2013, a 66 foot diameter undetected space rock approached Earth from near the direction of the Sun, entered our atmosphere at 9.3 miles per second, and exploded over Chelyabinsk, Russia creating an air blast wave which injured nearly 1,500 people.

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