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
  • 820-4015 Wilson-Harrington (1979 VA)

    820-4015 Wilson-Harrington (1979 VA)
    2024/10/25
    4015 Wilson-Harrington (1979 VA) was discovered as a comet by Wilson and Harrington in 1949, lost to astronomers for 30 years, and rediscovered in 1979 as an asteroid named 1979 VA. In 1992 with more data it was determined that comet Wilson-Harrington and asteroid 1979 VA are the same object.
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    2 分
  • 307E-326-Asteroids 2016

    307E-326-Asteroids 2016
    2024/10/22
    2016 was another record year for asteroid hunters during which we discovered 1,894 new Earth approaching objects. My team, the NASA funded, Catalina Sky Survey, led the pack with 931 Near Earth Asteroid discoveries.
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    2 分
  • 819-Binary Asteroids

    819-Binary Asteroids
    2024/10/18
    Binary asteroids are important since they enable astronomers to study how objects interact in space and in some cases the data can even yield their sizes and shapes.
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    2 分
  • 306E-325-Marrakech

    306E-325-Marrakech
    2024/10/15
    A location 9,000 feet above sea level in the Atlas Mountains of Morocco is ideal for an asteroid hunter since the weather is often clear and the skies are dark. It was thus intriguing for me to see that a new asteroid discovery was posted from J43 which is the Morocco Oukaïmeden [pronounced Oukaï-meden] Sky Survey or (MOSS) located near Marrakech , a name I had not encountered except in the Crosby, Stills, and Nash song "Marrakech Express". The MOSS observatory has team members in Morocco, France, and Switzerland, call themselves amateurs, and produces professional quality results.
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    2 分
  • 818-Historical Near Earth Comets

    818-Historical Near Earth Comets
    2024/10/11
    Approximately once every 45 million years a long period comet strikes the Earth with catastrophic results. Astronomers have identified and calculated orbits for more than 25 comets which have passed less than 40 times the Moon’s distance from us prior to the year 1900. There is the possibility of a Leonid meteor storm in mid November from 2021 to 2031 as the Earth passes through the debris left behind from Comet 55P/Tempel-Tuttle. Find a natural night sky location like the Cosmic Campground in New Mexico and check it out for yourself.
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    2 分