Travelers In The Night

Series produced by Albert Grauer

Series image
Image by: NASA 

Travelers In The Night is your unique source of insider Information from the Asteroid Hunting and Space Communities.
The music is "Eternity" by John Lyell.

The PRX Series “Travelers In The Night” has more than 6,100 PRX free purchases as well as more than 811,000 downloads on the internet. It has been aired on 59 radio stations.


It features an engaging and informative series of two minute, factual episodes about asteroids, comets, spacecraft, and other objects in space.

The pieces are "evergreen" in that they are current but not dated.

The Travelers In The Night Pieces are written and produced by a member of the Catalina Sky Survey Team at the University of Arizona.

The Catalina Sky Survey has discovered nearly half of the Earth approaching objects known to exist.


794 Pieces

Order by: Newest First | Oldest First
Caption: Artists Conception Earth,Moon, and Asteroid, Credit: NASA and Texas A&M
During a six hour period three small space rocks passed through the Earth-Moon system. At discovery 2023 TO4 was in Pegasus, 2023 TD7 was in Aries...

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  • Added: Dec 03, 2023
  • Length: 02:00
  • Purchases: 8
Caption: Vera Rubin Main Telescope Under Construction, Credit: Eric Christensen
The Catalina Sky Survey searches the sky as rapidly as possible in search of Earth approaching objects that could pose a threat to our home planet....

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  • Added: Nov 26, 2023
  • Length: 02:00
  • Purchases: 7
Caption: Artists Conception of an Asteroid and the Earth, Credit: ESA
New observations linked with discovery observations 10 years earlier provide a significant improvement in the precision of our knowledge of 2013 T...

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  • Added: Nov 19, 2023
  • Length: 02:00
  • Purchases: 8
Caption: Andromeda, Unexpected, Credit: Marcel Drechsler, Xavier Strottner and Yann Sainty
Marcel Drechsler, Xavier Strottner, and Yann Sainty’s image of our neighboring galaxy, M31, in Andromeda won the 10,000 British pound Astronomer P...

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  • Added: Nov 12, 2023
  • Length: 02:00
  • Purchases: 9
Caption: Artists Conception Psyche, Credit: NASA
NASA classifies 2023 SZ1 as a Potentially Hazardous Asteroid since it is larger than 140m in diameter and on its current path can come to about 6 t...

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  • Added: Nov 05, 2023
  • Length: 02:00
  • Purchases: 8
Caption: This artist’s concept shows what exoplanet K2-18 b could look like based on science data., Credit: NASA, CSA, ESA, J. Olmsted (STScI), Science: N. Madhusudhan (Cambridge University)
Hycean Worlds, with masses between Earth and Neptune which have thin hydrogen rich atmospheres above a liquid water ocean may be very common in ou...

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  • Added: Oct 29, 2023
  • Length: 02:00
  • Purchases: 9
Caption:  C/2023 P1 (Nishimura), Credit: Trevinca-Skies on Spain
Given the effects of climate change today who can predict what planet Earth will be like when C/2023 P1(Nishimura) comes back near our home planet...

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  • Added: Oct 22, 2023
  • Length: 02:00
  • Purchases: 11
Caption: Artists Conception Earth and Asteroid, Credit: Texas A&M
In 2023 T. Maroti of the Capricornus Observatory, Csokako, Hungary discovered two Earth approaching asteroids which were passing through the night...

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  • Added: Oct 15, 2023
  • Length: 02:00
  • Purchases: 9
Caption: Comet Nucleus, Credit: NASA
The more we learn about 322P/SOHO the stranger it becomes.

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  • Added: Oct 08, 2023
  • Length: 02:00
  • Purchases: 9
Caption: Korean Asteroid Hunting Telescope, Credit: Korea Astronomy and Space Science Institute
The Catalina Sky Survey and the Korean teams of asteroid hunters will discover and track Earth approaching objects making the residents of our home...

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  • Added: Oct 01, 2023
  • Length: 02:00
  • Purchases: 7
Caption: Bright Fireball, Credit: Bill Stewart
Bright fireball meteors sometimes rain pieces of themselves onto the ground for meteorite hunters to discover.

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  • Added: Sep 24, 2023
  • Length: 02:00
  • Purchases: 7
Caption: Green Airglow Over Colorado, Credit: Aaron Watson
The natural night sky is alive with its own lights. In addition to celestial sources often there is natural night sky airglow powered by space wea...

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  • Added: Sep 17, 2023
  • Length: 02:00
  • Purchases: 9
Caption: Nucleus Comet Wild-2, Credit: NASA
My Catalina Sky Survey teammate Josh Hogan was asteroid hunting in the constellation Sextans with our 60 inch telescope on Mt. Lemmon, Arizona whe...

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  • Added: Sep 10, 2023
  • Length: 02:00
  • Purchases: 8
Caption: Asteroid IDA, Credit: NASA
An object like 2023 MN5 impacts Earth once every 90,000 years or so creating a crater 5 miles in diameter an 1800 feet deep in sedimentary rock. 5...

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  • Added: Sep 03, 2023
  • Length: 02:00
  • Purchases: 8
Caption: Lunar Impact, Credit: NASA
In less than two hours my Catalina Sky Survey teammate Allesandra Serrano discovered two small fast moving space rocks. Both of them passed through...

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  • Added: Aug 27, 2023
  • Length: 02:00
  • Purchases: 8
Caption: Dimorphos, Credit: NASA
Carson Fuls, one of my Catalina Sky Survey teammates, is leading the effort that will allow you to join our NASA funded adventure in asteroid hunt...

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  • Added: Aug 20, 2023
  • Length: 02:00
  • Purchases: 8
Caption: Fireball, Credit: NASA
Hungarian astronomer and geography teacher Krisztián Sárneczky was asteroid hunting in the constellation of Lynx with 0.6m (24 inch) telescope at...

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  • Added: Aug 13, 2023
  • Length: 02:00
  • Purchases: 9
Piece image
An extremely wide field of view camera, the Zwicky Transient Facility, operated by Caltech on Palomar Mountain in California is able to take images...

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  • Added: Aug 06, 2023
  • Length: 02:00
  • Purchases: 8
Caption: A hypothetical alien craft transmits radio signals into space. Scientists are on the hunt for signals like these., Credit: Breakthrough Listen / Danielle Futselaar
Project Breakthrough Listen is spending $100 million over 10 years so that radio telescopes can search for signals which may indicate extraterrestr...

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  • Added: Jul 30, 2023
  • Length: 02:00
  • Purchases: 9
Caption: Artists conception asteroid Impact 65 million years ago, Credit: NASA (Don Davis)
My Catalina Sky Survey teammate David Rankin was asteroid hunting in the constellation of Cancer with our Schmidt telescope on Mt. Bigelow, Arizon...

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  • Added: Jul 23, 2023
  • Length: 02:00
  • Purchases: 8