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Travelers In The Night

Albert D. Grauer

Details

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

Recent Episodes

OCT 2, 2026
919-Automatic Detection Of An Impactor
Recently a pair of JPL SynTrack Robotic automated telescopes located at a high altitude low light pollution site in California provided 4 tracking data points taken less than 30 minutes apart which indicated that a small space rock with a diameter...
2 MIN
SEP 29, 2026
408E-449-Cloud 7
To give you an idea of the asteroid traffic in our neighborhood, on a mostly cloudy night, through holes in the clouds, in a space of less than 2 hours, my Catalina Sky Survey teammate Richard Kowalski posted 7 new close approaching asteroid...
2 MIN
SEP 25, 2026
918-Auroras from Space
The northern lights or Aurora Borealis have fascinated humans throughout the ages. Today aurora watching is a multimillion dollar industry in places like Alaska, Canada, Norway, Sweden, Finland, Greenland, and Iceland. Auroras are manifestations of...
2 MIN
SEP 22, 2026
407E-448-Two PHA's
The large dangerous asteroids that we don't know about are what keep asteroid hunters going to the telescope.
2 MIN
SEP 18, 2026
917-Space Dust
As the Earth orbits the Sun at 18.5 mi/s it sweeps up about 100 tons of micrometeorites and space dust every day of which some 14 tons eventually makes it to the ground. You can even find some of these particles of space dust by using a magnet on...
2 MIN