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
762-Kacper’s PHA
From: Albert Grauer
Series: Travelers In The Night
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...

Bought by KTAL-LP [Las Cruces Community Radio], RADIOLEX, KUCR 88.3 fm Riverside, Calif., KKRN, WTIP and more


  • Added: Sep 03, 2023
  • Length: 02:00
  • Purchases: 8
763-Hogan’s Big Rock
From: Albert Grauer
Series: Travelers In The Night
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...

Bought by Raven Radio, KTAL-LP [Las Cruces Community Radio], KGLP, RADIOLEX, WTIP and more


  • Added: Sep 10, 2023
  • Length: 02:00
  • Purchases: 8
764 Green Airglow
From: Albert Grauer
Series: Travelers In The Night
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...

Bought by Raven Radio, RADIOLEX, KTAL-LP [Las Cruces Community Radio], WTIP, KGLP and more


  • Added: Sep 17, 2023
  • Length: 02:00
  • Purchases: 9
765 Bright Fireball
From: Albert Grauer
Series: Travelers In The Night
Caption: Bright Fireball, Credit: Bill Stewart
Bright fireball meteors sometimes rain pieces of themselves onto the ground for meteorite hunters to discover.

Bought by Raven Radio, KGLP, KTAL-LP [Las Cruces Community Radio], RADIOLEX, KRWG and more


  • Added: Sep 24, 2023
  • Length: 02:00
  • Purchases: 7
766 Korean Asteroid Hunters
From: Albert Grauer
Series: Travelers In The Night
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...

Bought by KTAL-LP [Las Cruces Community Radio], RADIOLEX, Raven Radio, KGLP, KKRN and more


  • Added: Oct 01, 2023
  • Length: 02:00
  • Purchases: 7
767- A Really Tough Customer
From: Albert Grauer
Series: Travelers In The Night
Caption: Comet Nucleus, Credit: NASA
The more we learn about 322P/SOHO the stranger it becomes.

Bought by Raven Radio, KNVC Carson City Community Radio, WYAP, RADIOLEX, KGLP and more


  • Added: Oct 08, 2023
  • Length: 02:00
  • Purchases: 9
768- Capricornus Observatory, Csokako, Hungary
From: Albert Grauer
Series: Travelers In The Night
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...

Bought by Raven Radio, KNVC Carson City Community Radio, RADIOLEX, WTIP, KGLP and more


  • Added: Oct 15, 2023
  • Length: 02:00
  • Purchases: 9
769-Green Comet
From: Albert Grauer
Series: Travelers In The Night
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...

Bought by Raven Radio, KNVC Carson City Community Radio, KGLP, KUCR 88.3 fm Riverside, Calif., RADIOLEX and more


  • Added: Oct 22, 2023
  • Length: 02:00
  • Purchases: 11
770- Hycean Worlds
From: Albert Grauer
Series: Travelers In The Night
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...

Bought by KTAL-LP [Las Cruces Community Radio], RADIOLEX, Raven Radio, KGLP, WTIP and more


  • Added: Oct 29, 2023
  • Length: 02:00
  • Purchases: 9
771-Nice PHA
From: Albert Grauer
Series: Travelers In The Night
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...

Bought by Raven Radio, WYAP, RADIOLEX, KGLP, KTAL-LP [Las Cruces Community Radio] and more


  • Added: Nov 05, 2023
  • Length: 02:00
  • Purchases: 8
772-M31 Our Neighbor's Surprise
From: Albert Grauer
Series: Travelers In The Night
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...

Bought by Raven Radio, KTAL-LP [Las Cruces Community Radio], RADIOLEX, WTIP, KGLP and more


  • Added: Nov 12, 2023
  • Length: 02:00
  • Purchases: 9
773-Discovery and Recovery
From: Albert Grauer
Series: Travelers In The Night
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...

Bought by Raven Radio, KTAL-LP [Las Cruces Community Radio], RADIOLEX, WTIP, KGLP and more


  • Added: Nov 19, 2023
  • Length: 02:00
  • Purchases: 8
774-Loss and Gain
From: Albert Grauer
Series: Travelers In The Night
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....

Bought by Raven Radio, KTAL-LP [Las Cruces Community Radio], RADIOLEX, WTIP, KKRN and more


  • Added: Nov 26, 2023
  • Length: 02:00
  • Purchases: 7
775-3 Close Ones
From: Albert Grauer
Series: Travelers In The Night
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...

Bought by RADIOLEX, WTIP, Raven Radio, KTAL-LP [Las Cruces Community Radio], KKRN and more


  • Added: Dec 03, 2023
  • Length: 02:00
  • Purchases: 8
776-Naming Asteroids and Comets
From: Albert Grauer
Series: Travelers In The Night
Caption: Artists Conception Sun and Asteroids, Credit: NASA
Historically explorers in many fields of human endeavor have been granted the privilege to name their discovery. If you find a new comet and it r...

Bought by Raven Radio, KUGS Bellingham, Wash., RADIOLEX, WTIP, KKRN and more


  • Added: Dec 10, 2023
  • Length: 02:00
  • Purchases: 9
777-Psyche Bound
From: Albert Grauer
Series: Travelers In The Night
Caption: Artists Conception Psyche Spacecraft, Credit: NASA
The NASA Psyche Spacecraft will use a multispectral imager, gamma and neutron spectrometers, and other instruments to map, measure, and characteriz...

Bought by Raven Radio, KUGS Bellingham, Wash., KICI Iowa City, KTAL-LP [Las Cruces Community Radio], KGLP and more


  • Added: Dec 17, 2023
  • Length: 02:00
  • Purchases: 8
778-Two Comets
From: Albert Grauer
Series: Travelers In The Night
Caption: Two Comets in Southern Skies , Credit: Jose J. Chambo (Cometografia)
Matching his wife’s discovery of two comets on the same observing run seven years previously my Catalina Sky Survey team caption Carson Fuls discov...

Bought by KNVC Carson City Community Radio, KUGS Bellingham, Wash., WTIP, KKRN, Raven Radio and more


  • Added: Dec 24, 2023
  • Length: 02:00
  • Purchases: 9
779-What If An Asteroid is About To Impact Earth?
From: Albert Grauer
Series: Travelers In The Night
Caption: Concept of Asteroid Pulversation, Credit: Lubin 2021
A description of a research project whose goal to explore if it would be possible, on short notice, to pulverize a small asteroid so that it woul...

Bought by Raven Radio, KUGS Bellingham, Wash., KNVC Carson City Community Radio, RADIOLEX, WTIP and more


  • Added: Dec 31, 2023
  • Length: 02:00
  • Purchases: 10
780-Scary Space Rock
From: Albert Grauer
Series: Travelers In The Night
Caption: Artists Conception Earth and an Asteroid, Credit: NASA
My Catalina Sky Survey teammate David Rankin was being filmed and interviewed by the NASA 360 crew at our 60 inch telescope on Mt. Lemmon, Arizona ...

Bought by Raven Radio, KUGS Bellingham, Wash., RADIOLEX, KGLP, KNVC Carson City Community Radio and more


  • Added: Jan 07, 2024
  • Length: 02:00
  • Purchases: 9
781-Comet C/2023 V5 (Leonard)
From: Albert Grauer
Series: Travelers In The Night
Caption: Comet Lemmon C/2023 H2, Credit: J.D. Maddy in the Hauchuca Astronomy Club
My Catalina Sky Survey teammate Greg Leonard was asteroid hunting in the constellation of Aquarius with our Schmidt telescope on Mt. Bigelow, Arizo...

Bought by RADIOLEX, WTIP, KNVC Carson City Community Radio, Raven Radio, KGLP and more


  • Added: Jan 14, 2024
  • Length: 02:00
  • Purchases: 10

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