Travelers In The Night

De: Albert D. Grauer
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  • Resumen

  • A real "Science Snack" for anyone who is interested in the extraterrestrial.
    Dr. Al Grauer is a member of the Catalina Sky Survey which has led the world in near Earth asteroid discoveries for 17 of the past 19 years.
    The music is "Eternity" by John Lyell.
    Astronomy Asteroids Space NASA Comets Earth Impact Aliens
    Albert D. Grauer
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Episodios
  • 810-Humans Can

    810-Humans Can
    Aug 16 2024
    The James Webb Space Telescope or JWST for short is a superb scientific instrument which is revolutionizing our understanding of the structure of the universe and is providing a tool to help us to explore the possibility of life outside of Earth. It is also a testament to what humans can accomplish by working together.
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    2 m
  • 297E-316-Weird Centaur

    297E-316-Weird Centaur
    Aug 13 2024
    My Catalina Sky Survey teammate Richard Kowalski was surprised to find a moving point of light on some his images which was more than 50 times brighter than a typical Earth approaching object he observes . He was even more amazed when it was not cataloged as a known object and he reported his observations to the Minor Planet Center. A couple of hours before Richard spotted it, scientists using the Space Surveillance Telescope in New Mexico had picked up this unknown object on some of their images but did not immediately report their observations. For the next 67 hours the new object was tracked by telescopes at 24 different observatories around the world. These observations allowed the Minor Planet Center to calculate an orbit, give it the name 2016 WM48, and classify it as a Centaur. Centaurs are named after the mythical beasts which were half human and half horse perhaps because they have characteristics of both asteroids and comets. Richard's object, 2016 WM48, is about a mile in diameter. We don't know if it has rings, tiny moons, or a gas cloud surrounding it as some other Centaurs do. 2016 WM48 must have had a catastrophic collision in the past few million years which put it on a very elliptical path which is tipped at 60 degrees or so to the solar system's plane. Centaurs do not have stable orbits. Their paths are changed as they come near to the giant planets Jupiter, Saturn, Uranus, and Neptune. A Centaur's fate is to likely collide with the Sun or a planet or perhaps even be ejected from the solar system
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    2 m
  • 809- How Close Can An Asteroid Approach

    809- How Close Can An Asteroid Approach
    Aug 9 2024
    The Earth Minimum Orbit Intersection Distance or Earth MOID for short is the closest an asteroid can come to our home planet on it's current orbit.
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    2 m
Astronomía
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