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

326-Asteroids 2016 21.02.2017

Dangerous Celestial Neighbors Are Still Out There.

325-Marrakech 17.02.2017

An observatory near Marrakech, operated remotely from France and Switzerland, is discovering new members of our solar system.

324-Newborn Planets 14.02.2017

Astronomers are able to view the rare occurrence of planets in formation with the ALMA radio telescope in Chile.

323-Big Splash 10.02.2017

An asteroid impacting into the ocean would create a big splash but not a tsunami.

322-Dust Stories 07.02.2017

Tiny messengers from outer space enter our atmosphere every day. Collect your own beautiful micro-meteorite sample.

321-Dangereous Comet 03.02.2017

Humanity should be ready in the unlikely but potentially catastrophic situation in which a comet comes out of nowhere and is heading for planet Earth.

320-WOW What a Ride 31.01.2017

A potentially hazardous asteroid crosses the orbits of Mercury, Venus, Earth, and Mars. It must be made of durable rocky material to survive its close approaches to the Sun.

319-Lost and Found 27.01.2017

A 426 foot diameter asteroid is found after being lost for 15 years.

318-Caves of Mars 24.01.2017

It is intriguing to consider that deep inside Mars all of the necessary ingredients for life may be present together.

317-Psyche Water 20.01.2017

The asteroid Psyche may be one of the most expensive pieces of real estate in the solar system.

316-Weird Centaur 17.01.2017

Centaurs are named after the mythical beasts which were half human and half horse perhaps because they have characteristics of both asteroids and comets.

315-See Comets 13.01.2017

2017 will be a good year to view comets with your unaided eye or a pair of binoculars.

314-Our Number 10.01.2017

The extremely unlikely scenario of an impactor with our number on it.

313-Martian Motherlode 06.01.2017

Using ground the penetrating RADAR on the NASA Mars Reconnaissance Orbiter, scientists have discovered an ice deposit on Mars the size of New Mexico.

312-200 Yards Of Trouble 03.01.2017

An asteroid which can come to within about an Earth circumference of the surface of our home planet needs watching.

311-Bright and Bald 30.12.2016

Humans are developing the ability to study an Earth approaching object to prepare for one that is on an impact trajectory with our home planet.

310-Ethics and Mars 27.12.2016

Should martian microbes be sacrificed to human space exploration.

309-Tiny Atira 23.12.2016

Atira, named for the Pawnee goddess of Earth and the Morning and Evening Star orbits the Sun inside of our path.

308-Planning For Impact 20.12.2016

Planning for the unlikely event that an asteroid is on a collision course with planet Earth will minimize injury and the loss of life.

307-Stepping It Up 16.12.2016

Competition gives humans the best chance to find dangerous objects and tax payers get more bang for their buck.

306-Egg Rock 13.12.2016

The NASA/JPL Mars Curiosity Rover discovers a meteorite on Mars.

305-Murky 09.12.2016

A very close approaching asteroid is observed to pass through the Earth's shadow.

304-Close One 06.12.2016

Tracking a small asteroid as it makes a very close approach to planet Earth.

303-CRASH 02.12.2016

Traveling to Mars is a risky business.

302-Sensing A Comet 29.11.2016

Combining Art and Science gives us a new way to appreciate the wonders of the Universe.

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