Travelers In The Night
চ্যানেল বিস্তারিত
Travelers In The Night
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...
সাম্প্রতিক এপিসোড
1064 টি এপিসোড
897-Kacper's Comet
In 2007 a small icy object moving in the constellation of Ursa Minor crossed the orbit of Pluto at a speed of approximately 4.2 mi/s starting its jour...
386E-423-Silent ET
Oumuamua (“Oh-moo-ah-moo-ah”) is the asteroid that zipped by the Earth on a trajectory that started beyond our solar system in truly deep space. After...
896-Sneaky But Potentially Dangerous
My Catalina Sky Survey teammate Greg Leonard was asteroid hunting with our 60 inch telescope on Mt. Lemmon, Arizona when he came across an unknown mov...
385E-421-New Aten
Recently my Catalina Sky Survey teammates Carson Fuls and Greg Lenoard discovered an Aten asteroid which orbits the Sun once every 272 days and on a p...
895-Tracking Space Junk
According to NASA an average of one catalogued piece of space junk per day has come down to Earth over the past 50 years. Research is described which...
384E-420-Dry Sands
The NASA Curiosity Rover has shown us evidence of ancient rivers and bodies of liquid water on the martian surface. Given it's thin cold atmosphere, s...
894-Discovery Night at the Schmidt
On a recent night my Catalina Sky Survey teammate Vivian Carvajal found 4 Earth approaching space rocks with our small but mighty Schmidt telescope on...
383E-419-ET's Cigar
In 2012 as it crossed the orbit of Neptune heading towards the Sun a small space rock was 250 times fainter than can be detected by the Hubble Space T...
893-DarkSky Oregon
Artificial light at night also known as light pollution is degrading human safety and health as well as damaging the natural environment on which we a...
382E-418-Fireball II
Recently there were four fireball meteors, brighter than the planet Venus, which exploded over Germany, France, Ohio, and Arizona within the space of...
892-140m-asteroids
Humans can mitigate the damage done by the impact of an asteroid given a sufficient lead time. In 1998, the US Congress mandated NASA to detect and tr...
381E-417-Red Dwarf Planets
Astronomers continue to be delighted when they discover an Earth sized planet. Scientists were thus very disappointed when the red dwarf star hosting...
891-2026-AA
My Catalina Sky Survey teammate Tracie Beuden was observing with our Schmidt telescope on Mt. Bigelow, Arizona in the constellation of Persus when she...
380E-416-Odd Ball
The orbits of the planets are closely aligned with the extension of the Sun's equator into space and are contained within the flattened disk of materi...
890-Comet 467P(Linear-Grauer)
Astronomers using the 8.1 m Gemini South Telescope in Chile were excited by the fact that 467P (LINEAR-Grauer)’s Centaur like orbit had been changed a...
379E-415-Well Done
Once every 1,435 days , a 780 foot diameter space rock that my Catalina Sky Survey teammate Carson Fuls discovered makes an annihilation defying close...
889-Lick Observatory
In 1892 the world’s largest telescope, the Lick Observatory’s 36 inch refracting telescope made the news when E.E. Barnard discovered, Amalthea, the 5...
378E-414-Enormous Visitor
Without additional data, the true nature of the rapidly northward moving point of light my Catalina Sky Survey teammate Carson Fuls had just discovere...
888-Investigating the Mystery of How Life Formed
On Earth living things are everywhere from the deepest ocean depths to the highest mountain tops. On our home planet RNA (Ribonucleic Acid) is a compl...
377E-413-Fission Rocket
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...
887-Apophis Bound
In April 2029 on one of the luckiest Friday the 13th in human history the 1500 ft by 500 ft asteroid Apophis will pass within 23,600 miles of the Eart...
376E-412-Tiny Space Rock
Eighteen hours before my Catalina Sky Survey teammate Rose Matheny first spotted a small space rock with our Schmidt telescope on Mt. Bigelow, Arizona...
886-Aviation&Space Weather
The Earth’s atmosphere does a good job of protecting humanity from space weather, however, occasionally a major event does break through our shield an...
375E-410-Extraterrestrial Whales
In an area which is about 1/400th of the entire sky, the NASA Kepler spacecraft has discovered 30 Earth like planets which are likely to have liquid w...
885-Dark Sky Network
Around the world those who value the natural night sky are evaluating the effects of light pollution. In addition to impairing astronomy and star gazi...
374E-408-Earth's Pet Rock
On it's gravitational leash, Earth's pet space rock, 2016 HO3, accompanies us at a distance of between 38 and 100 times the Moon's distance from Earth...
884-Turkeys and Asteroids
Since in its early history the Earth’s surface was hot and lifeless it is likely that asteroids formed in the same era as Bennu delivered the raw mate...
373E-407-Plant Companionship
On Earth, human life is enabled by plants which provide us with calories, vitamins, fuel, medicines, and oxygen to breathe. In addition, recent scient...
883-Theia
In the distant past things in our solar system were very much more wild and violent than they are today. 4.5 billion years ago a Mars sized object cal...
372E-406-Close Ones
In less than 24 hours, while observing with the Catalina Sky Survey's 60 inch telescope on Mt. Lemmon, Arizona , I discovered two 25 foot diameter spa...
882-David’s Goliath PHA
My Catalina Sky Survey teammate David Rankin was asteroid hunting in the evening twilight with our 60 inch telescope on Mt. Lemmon Arizona when he spo...
371E-405-Kiwi Nights
New Zealand's 4.5 million people are concentrated in three major population centers which to various degrees suffer from the modern plague of light po...
881-Dangerous Comets
It is possible the object creating the Tunguska event in Russia 1908 which knocked down 80 million trees over an area about twice the size of New York...
370E-403-Double Comet
In November of 2006, University of Arizona's Spacewatch astronomers on Kitt Peak discovered a faint moving point of light in the night sky which appea...
882-David’s Goliath PHA
My Catalina Sky Survey teammate David Rankin was asteroid hunting in the evening twilight with our 60 inch telescope on Mt. Lemmon Arizona when he spo...
369E-401-Night Vision
Many people in our modern world rarely if ever experience night vision. To achieve this interesting state of sensory awareness you cannot look at your...
881-Dangerous Comets
It is possible the object creating the Tunguska event in Russia 1908 which knocked down 80 million trees over an area about twice the size of New York...
368E-400-Roving Venus
Venus and Earth are similar in size, composition, density, and mass. Unfortunately, our sister planet Venus is an example of a place where green house...
880-Carrington Anticipated
Just before noon on September 1st of 1859 Richard Carrington and Richard Hodgson were making sketches of clusters of sunspots when they were nearly bl...
367E-399-Moons of Florence
Dr Lance Benner of NASA's Jet Propulsion Laboratory headed up a team of scientists who used the 70 meter antenna at NASA's Goldstone Deep Space Commun...