Travelers In The Night

著者： Albert D. Grauer
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  • サマリー

  • 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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あらすじ・解説

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
天文学
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エピソード
  • 309E-328-The Heat is On

    309E-328-The Heat is On
    2024/11/05
    The National Oceanic and Atmospheric Administration has published an extensive data based review, analysis, and summary of the Earth's Climate. 2016 was hotter than 2015 which was hotter than 2014. 2016 is the warmest year the Earth has been in the more than 180 years of record keeping. Overall in 2016 the whole Earth was 1.8 F above the 1951-1980 average. The Arctic in 2016 was 7.2F higher than it was the pre-industrial age.
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    2 分
  • 821-Dinosaur Killing Asteroid

    821-Dinosaur Killing Asteroid
    2024/11/01
    Scientific results are consistent with the hypothesis that the dinosaur killing, K-T layer forming Chicxulub impactor came from well beyond Jupiter while the other 5 impactors in the past 541 million years as well as most meteorites found on Earth came from asteroids formed between Mars and Jupiter. All of this prompts us to marvel that we are here at all and puzzle over how to prepare for what the future might hold. In particular asteroid hunters should take seriously the possibility of an impactor from deep space with our number on it.
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    2 分
  • 308E-327-Suddenly Bright

    308E-327-Suddenly Bright
    2024/10/29
    An example that a relatively large space rock can approach the Earth suddenly started with what appeared as a bright star moving across the images that I had just obtained with the Catalina Sky Survey's 60 inch telescope on Mt. Lemmon, Arizona. It was about 100 times brighter than most of Earth approaching objects asteroid hunters discover. Over the next 64 hours it was tracked by 45 different observatories around the globe. This previously unknown space rock, now named 2017 AG5, is approximately 370 feet in diameter and can come closer than the Moon's distance to us.
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    2 分

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