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Science
Hosted by Unknown Host · Science · EN · 0 episodes
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
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Signup to Generate a PitchTravelers In The Night is a science podcast hosted by Unknown Host, with 0 episodes on record and a Required Pod Score of 92. PitchCentric scores this show on Booking Probability, Listen Score, and live audience signals refreshed every 24 hours.
Unknown Host hosts Travelers In The Night, a science show with 0 episodes published.
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Travelers In The Night
In 2017 observers in 50 countries at 440 different observatories made nearly 19 million observations of asteroids and comets which enable scientists to calculate where about 800,000 objects will be in the future.
Travelers In The Night
Recently on a Saturday afternoon a loud double booming sound startled residents of Massachusetts and Rhode Island as a large bolide meteor exploded high above. This type of space rock is a message from nature which reveals the conditions which existed when the planets formed.
Travelers In The Night
During the only 3 clears hours of his first night solo as an asteroid hunter, my new Catalina Sky Survey teammate Brian Africano discovered two new Earth approaching asteroids with our Schmidt Telescope on Mt. Bigelow, Arizona. Since one of Brian's discoveries is almost 300 feet in diameter, astronomers at 18 different observatories around the world stayed on it for more than 68 hours, after Brian posted his discovery observations, to determine a reasonable orbit for it.
Travelers In The Night
Comet 220P/McNaught orbits the Sun once every 5.5 years on a path which is between Mars and Jupiter. At that extreme distance, more than 1.5 times the Earth’s distance from the Sun, it still receives a significant amount of solar radiation. In 2026 Comet 220P/McNaught had an outburst which caused it to brighten 600 times in about 13 hours and then to continue to brighten to about 8,000 times brighter than in was in its pre-outburst state.
Travelers In The Night
My Catalina Sky Survey teammate Carson Fuls was observing, in the constellation Lynx, with our Schmidt telescope on Mt. Bigelow, Arizona , when within the space of only 35 minutes, he discovered two small space rocks well before they made very close approaches to Earth. 79 hours after Carson discovered the first, 2018 CB, this approximately 70 foot diameter space rock passed about 1/5 of the Moon's distance from us. Turns out that the second of Carson's duo, an approximately 50 foot diameter space rock got near us first, when 62 hours after Carson discovered 2018 CC, it came to less than 1/2 of the Moon's distance from the surface of planet Earth. Since we didn't have a large enough, properly equipped telescope to measure the pattern of colors each of Carson's discoveries reflects from the Sun we can only estimate their physical sizes and guess at their densities and chemical compositions. In any event, if either of these space rocks were to strike the Earth they would likely explode at an altitude about 100,000 feet above the Earth's surface, releasing the energy of tens of thousands of pounds of TNT, producing a spectacular light show. Both of Carson's discoveries could be similar to the space rock which exploded over Chelyabinsk, Russia breaking windows, injuring nearly 1,500 people, and producing numerous fragments which made it to the ground. If either of Carson's discoveries had been on an impact trajectory with Earth, asteroid hunters would have had time to warn people in the effected area to stay away from doors and windows.
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