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Travelers in the Night Eps. 377 & 378: Fission Rocket & Enormous Visitor

Travelers in the Night Eps. 377 & 378: Fission Rocket & Enormous Visitor

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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:

- To get an idea of the energy involved in a rocket launch, the
NASA Saturn V, moon rocket, fully fueled on the launch pad
contained the chemical energy of 2,000 pounds of TNT. This old
technology could carry us to Mars and back on missions that would
last years. To cut the mission time, the (radiation) risks, and
the mass of supplies required for such a prolonged space mission
NASA is looking at alternative means of rocket propulsion. Back
in the 1950s NASA's project Orion was a study to investigate
propelling a rocket by a series of atomic bomb explosions behind
the vehicle. 

 

- Without additional data, the true nature of the rapidly
northward moving point of light my Catalina Sky Survey teammate
Carson Fuls (the new Director of CSS) had just
discovered would have remained a mystery. Fortunately, this new
object was tracked by telescopes in both Arizona and New Mexico.
These data were used to calculate it's orbit around the Sun,
estimate it's size, and give it the name 2017 UX5. When Carson
first spotted this enormous 1,200 foot diameter space rock it was
more than 30 million miles away traveling in our direction at
10.7 mi/s. It's orbit and that of the Earth's nearly intersect
and at the closest point they are about two and one half times
the Moon's distance from us apart.

 

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The 365 Days of Astronomy Podcast is produced by the Planetary
Science Institute. http://www.psi.edu

Visit us on the web at 365DaysOfAstronomy.org or email us at
info@365DaysOfAstronomy.org.

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