Travelers In The Night
Dettagli canale
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...
Episodi recenti
1007 episodi
358E-389-Tiny Spacecraft
To reach the vicinity of the nearest star, 24 trillion miles away, in less than 20 years, an interstellar space probe would have to travel at a substa...
870-Satellite Ashes
50 years ago scientists found that Chlorofluorocarbons or CFC chemicals in widespread use in refrigeration, air conditioning , and hair spray were beg...
357E-388-40 years
Looking at the stars on a clear dark night, far from the artificial air glow humanity creates, have you ever wondered what it would be like to travel...
869-Taurid Resonant Swarm
The planets, millions of asteroids, tens of thousands of comets, distant icy worlds, and countless other bits and pieces of material orbit the Sun. A...
356E-386-Interplanetary Sand Traps
When the Japanese spacecraft Hayabusa [Hi ya Boo sa] visited the near Earth asteroid Itokawa in 2005 it found this 2000 foot by 800 foot elliptical wo...
868-Inside Venus
Astronomers have discovered some 1.4 million asteroids. Approximately 35,000 of these space rocks come near Earth. Less than 40 of them are classifi...
355E-383-Moon Water
The lunar roving, battery powered, 4 wheel drive "Moon Buggy" allowed astronauts on Apollo 15, 16, and 17 to travel 8 mph on the lunar surface with a...
867-Daytime Fireball
Dr. Bill Cooke of NASA’s Meteoroid Environment Office reports that on June 26, 2025 shortly after noon a beachball sized meteoroid traveling at approx...
354E-382-Martian Debris
Martian Trojan asteroids have stable orbits around the Sun, leading and trailing the red planet by 60 degrees, where the Sun's and Mars's gravity are...
866-Interstellar Visitor
Amazingly, nature occasionally sends an interstellar traveler through our solar system for us to observe. The third such object that astronomers have...
353E-381-Peaceful Star
The Sun is our very own well behaved star. It rises and sets in our sky every day and powers and makes possible all life forms on planet Earth. A new...
865-New Potentially Hazardous Asteroid
On a a short June night my Catalina Sky Survey teammate Greg Leonard was observing with our 60 inch telescope on Mt. Lemmon, Arizona in the constellat...
352E-379-Flying Mud Balls
75% of asteroid hunter's discoveries are called C type asteroids. They are dark, have a high abundance of carbon, consist of clay and silicate rocks,...
864-Lunar Debris
Asteroid 2024 YR4 will not hit the Earth in 2032, has a 4% chance of hitting the moon, and most likely will pass within 900 miles of the lunar surface...
351E-376-Active Asteroids
When it was first spotted by astronomers at Space Watch on Kitt Peak, 2008 GO98 appeared to be one of many outer main belt asteroids moving through th...
863-Space Elevator
In a recent study Dr. Lynnane George and her co-authors investigate Space Elevator technology to remove materials from Ceres and deliver them to orbit...
350E-374-Brute
Recently my Catalina Sky Survey teammate Richard Kowalski discovered a 0.4 mile diameter asteroid with the Catalina Sky Survey Schmidt telescope on Mt...
862-New Planet 9 Search
Recently, using data from the Japanese infrared telescope AKARI, Dr. Amos Y.A. Chen and his collaborators published a paper in the Publications of th...
349E-372-Trappist-1 Planets
The Trappist-1 planetary system located about 40 light years away in the constellation of Aquarius consists of a small red dwarf star and 7 Earth size...
861-Big Bear Observatory
Big Bear Solar Observatory is a unique facility operated by the New Jersey Institute of Technology. Its 1.6 meter Goode Solar Telescope is located on...
348E-371-2 Headed Space Worm
Humans are moving towards a day when there are space colonies in orbit, on the Moon, and the planet Mars, places where the force of gravity ranges bet...
860-Worlds Largest Solar Telescope
The US National Science Foundation’s Daniel K. Inouye Solar Telescope is the worlds largest solar telescope. It is perched 10,000 feet above sea leve...
347E-370-Life's Parts
24 hours a day, 16,600 feet above sea level in the high dry desert of northern Chile, the 66 antennas of 1.4 billion dollar Atacama Large Millimeter/s...
859-Powerful Solar Storm
After the Earth the Sun is the most important object for human beings in the Universe. It is the energy source which produces our food and is the sou...
346E-369-Finding Treasure
The energy required to lift water, food, and construction materials from the Earth's surface is very expensive. Asteroids come relatively close to Ear...
858-Vanishing Dark and Quiet
Sadly humans seem to be in the process of creating a cosmic land fill which will blot out much of the cosmos.
345E-368-Asteroid Alert
When Asteroid hunters discover a new object it is given a score ranging from 0 which means it is likely to be a distant main belt asteroid up to 100 w...
857-Gila Cliff Dwellings
Recently my Catalina Sky Survey teammate Dr. Hannes Gröller and I traveled to the Gila Cliff Dwellings National Monument to install two night sky mete...
344E-367-Future Impactor
My Catalina Sky Survey teammate Carson Fuls discovered a 33 foot diameter asteroid which has about a 1.1% chance of impacting the Earth on 569 encount...
856-Big One
My Catalina Sky Survey teammate Vivian Carvajal was asteroid hunting in the constellation of Cepheus with our small but mighty Schmidt telescope on Mt...
343E-366-3 Explorers
Recently, my Grandsons, Dane and Hank joined our asteroid hunting team at the Catalina Sky Survey 60 inch telescope on Mt. Lemmon. The most interestin...
855-Planetary Defense
In 2016 NASA created the Planetary Defense Coordination Office to manage the mission of finding, tracking, and studying asteroids and comets which cou...
342E-365-Tabby's Star
The mystery of Tabby's star began to unfold when in 2015 Dr. Tabetha S. Boyajian [boy-AA-jee-uhn] of Louisiana State University and her team published...
854-Weird Planet Exotic Life?
Data are consistent with the hypothesis that the planet K2-18b is a Hycean planet with a warm liquid water ocean teaming with life and a thin hydrogen...
341E-364-Laser Surfing
When we find a planet which appears to have the chemical signs of living organisms in its atmosphere, the desire to take a close up look at it will be...
853-Tardigrade
In the search for life on Mars, Europa, Titan, and elsewhere in the universe astro-biologists are scouring the Earth for creatures tough enough to flo...
852-Landing On Mars
The good news is a Mars landing by human colonists and their equipment seems technically feasible given a large budget of cash and grit.
339E-359-Ice World
Recently Dr. Yossi Shvartzvald led a team which published their discovery of an Earth sized planet using microlensing in the Astrophysical Journal Let...
851-Scientists Views Odds of Aliens
In a recent paper published in Nature Astronomy entitled “Surveys of the scientific community on the existence of extraterrestrial life” Dr. Peter Vi...
338E-357-Double Trouble
When I discovered 2014 JO25 with the NASA funded Catalina Sky Survey's 60 inch telescope on May 5, 2014, it appeared as a single point of light as it...