Albert D. Grauer

Travelers In The Night

Science EN ↓ 1000 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

Author

Albert D. Grauer

Category

Science

Podcast website

travelersinthenight.org

Latest episode

Jul 10, 2026

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Episodes

208E-220-Deuce 22.11.2022

A pair of comet discoveries are reported in the space of 31 hours

719-What A Night(505) 18.11.2022

To give you an idea of the celestial traffic in our neighborhood, on a recent clear night, using our 60 inch telescope on Mt. Lemmon, Arizona, my Catalina Sky Survey teammate Hannes Groller posted 20 new objects on the Minor Planet Center's Near Earth Object Confirmation Page. In the future five of these asteroids may become a valuable source of raw materials for Martian colonists.

207E-219-Zero 15.11.2022

A small asteroid's path around the Sun very nearly crosses that of Earth.

718-Vulcan(504) 11.11.2022

In the fictional Star Trek series, Vulcan, Spock's home planet was imagined to orbit the A component of the triple star system 40 Eridani [Eri-dani ]. Recently astronomers using the Dharma Planet Survey 50 inch telescope on Mt. Lemmon, Arizona have discovered that there is indeed an actual planet, named HD26965 b, with mass of 8.5 times that of Earth orbiting the star 40 Eridani A once every 42.38...

206E-218-Still Out There 08.11.2022

Unknown large dangerous Earth approaching asteroids are still out there

717-Fuls III(503) 04.11.2022

Recently my Catalina Sky Survey teammate Carson Fuls discovered his third comet, Comet C/2018 R4 (Fuls). It is now on its way back into deep space. Given the climate change Earth is experiencing it is hard to predict the state of our planet and humanity when Comet Fuls returns in 7,500 AD.

205E-217-How Close 01.11.2022

Earth approaching asteroids are found by their motion in the sky.

716-Pair of PHAs(502) 28.10.2022

Asteroid Hunters keep careful track of nearly 2,000 Potentially Hazardous Asteroids [PHAs] to make sure that they are no threat to humanity. The recent discovery of two new PHAs reminds us that there are many still out there to be discovered and followed.

204E-216-Blinky Revealed 25.10.2022

An Earth approaching asteroid is found to triple in brightness every 9 minutes.

715-Carson's Night(501) 21.10.2022

A small space rock is spotted 4 days before it came very close to the Earth and our Moon.

203E-215-Blinky 18.10.2022

A rapidly spinning asteroid comes close to both the Earth and our Moon.

714-Why Look(500) 14.10.2022

What asteroid hunters fear is that a small space rock capable of injuring people and damaging buildings is heading our way and that we will not find it in time to give a warning for people in the impact area to seek cover.

202E-214-Jupiter's Comets 11.10.2022

The giant planet Jupiter has its own family of comets orbiting our Sun.

713-Oppy(499) 07.10.2022

The NASA Mars Opportunity Rover, nicked named Oppy by those who operate and love it ,was designed to last 90 days on the Martian surface but has continued to explore the surface of the red planet for 14 years.

201E-213-Great Night 04.10.2022

A dozen Earth approaching asteroid candidates are discovered in a single night.

712-Tiny Travelers(498) 30.09.2022

Although small space rocks pose no threat to humans, they are an interesting part of our environment, offer a chance for asteroid hunters to develop their tracking skills, and occasionally provide an opportunity for a meteorite hunter to touch an object from outer space.

200E-212-Dead Comet 27.09.2022

A potentially hazardous dead comet makes a close approach to Earth

711-First One(496) 23.09.2022

Asteroid hunters were able to discover a small Earth approaching asteroid after 57 nights of continuous rain and clouds.

199E-211-Smoking Moon 20.09.2022

Humans have discovered oceans of liquid salty water on four small worlds in our solar system. Could living things be flourishing in these alien environments?

710-Boomer(496) 16.09.2022

The fireball meteor streaking across the sky the early evening of January 17, 2018, witnessed by 700 observers in 11 States and Canada was also recorded by infrasonic microphones and seismometers. Scientific studies of this event gives researchers the ability to assess the risks presented by the 2,000 large fireball meteor explosions which occur each year world wide and will allow scientists to de...

198E-210-Life's Core 13.09.2022

All life has a common core which can guide our search for life outside of our planet.

709-Catching Asteroids(495) 09.09.2022

Asteroid Mining Is Possible. It might be possible to catch an asteroid, place it into Earth orbit, and thus provide a ready source of precious metals and water for space colonists to use.

197E-209-Stretch Marked Moon 06.09.2022

Mars is in the process of turning a moon into a ring

708-Guard Down(494) 02.09.2022

In 2018, July and August were cloudy and rainy in both Arizona and Hawaii sidelining the worlds two most productive asteroid hunting surveys. A cost effective way to make the Earth's planetary defense system more weather proof is to put a network of asteroid hunting telescopes around the world to discover and track potentially dangerous nearby neighbors.

196E-208-Hot Lunation 30.08.2022

My team the Catalina Sky Survey discovers 89 new Earth approaching objects in 24 nights.

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