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 6,525 PRX free purchases as well as more than 827,000 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.


814 Pieces

Order by: Newest First | Oldest First
815-RADAR Observes a Binary PHA
From: Albert Grauer
Series: Travelers In The Night
Caption: Radar Images of Asteroid 2011UL21, Credit: NASA/JPL
RADAR is very powerful tool since it can precisely measure an asteroid’s position and velocity as well as in some cases yield information about it...

Bought by KRWG and KICI Iowa City


  • Added: Sep 08, 2024
  • Length: 02:00
  • Purchases: 2
814-Threat of Solar Storms
From: Albert Grauer
Series: Travelers In The Night
Caption: Solar Eruption, Credit: NASA
Solar storms on our home planet occur when bursts of visible, ultraviolet and other photons hit our atmosphere and/or streams of energetic particle...

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


  • Added: Sep 01, 2024
  • Length: 02:00
  • Purchases: 8
813-RADAR Observations of Close Approachers
From: Albert Grauer
Series: Travelers In The Night
Caption: Artists Conception of Asteroid Impact, Credit: NASA
Astronomers measure an asteroid’s position on the sky using a two dimensional system similar to the latitude and longitude coordinates we obtain w...

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


  • Added: Aug 25, 2024
  • Length: 02:00
  • Purchases: 9
812-The Bennu Files I
From: Albert Grauer
Series: Travelers In The Night
Caption: Asteroid Bennu, Credit: NASA/U. Arizona
A recent scientific paper characterizes the 123 grams of the regolith or surface material from the asteroid Bennu which NASA’s OSIRIS-REx spacecra...

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


  • Added: Aug 18, 2024
  • Length: 02:00
  • Purchases: 9
811-Martian Meteorite Hunters
From: Albert Grauer
Series: Travelers In The Night
Caption: Cacao, Credit: NASA/JPL-Caltech/MSSS
Perhaps someday humans will travel to Mars, walk the surface of the red planet, and collect meteorites. Recent studies suggest Mars to be an excit...

Bought by KUGS Bellingham, Wash., KTAL-LP [Las Cruces Community Radio], KNVC Carson City Community Radio, RADIOLEX, Raven Radio and more


  • Added: Aug 11, 2024
  • Length: 02:00
  • Purchases: 9
810-Humans Can
From: Albert Grauer
Series: Travelers In The Night
Caption: James Webb Space Telescope, Credit: NASA
The James Webb Space Telescope or JWST for short is a superb scientific instrument which is revolutionizing our understanding of the structure of t...

Bought by KUGS Bellingham, Wash., Raven Radio, KNVC Carson City Community Radio, RADIOLEX, KTAL-LP [Las Cruces Community Radio] and more


  • Added: Aug 04, 2024
  • Length: 02:00
  • Purchases: 9
809-How Close Can An Asteroid Approach
From: Albert Grauer
Series: Travelers In The Night
Caption: Artist’s conception of Earth and an Asteroid , Credit: Texas A&M/NASA
The Earth Minimum Orbit Intersection Distance or Earth MOID for short is the closest an asteroid can come to our home planet on it's current orbit.

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


  • Added: Jul 28, 2024
  • Length: 02:00
  • Purchases: 11
808-Global Auroras on Mars
From: Albert Grauer
Series: Travelers In The Night
Caption: Ultraviolet View of Mars from MAVEN Satellite , Credit: NASA
When the Earth enters a stream of high speed protons and other charged particles in the solar wind or our home planet is impacted by a solar corona...

Bought by KCHW, KUGS Bellingham, Wash., KTAL-LP [Las Cruces Community Radio], KNVC Carson City Community Radio, RADIOLEX and more


  • Added: Jul 22, 2024
  • Length: 02:00
  • Purchases: 9
807-Moon Orbit Crossers
From: Albert Grauer
Series: Travelers In The Night
Caption: Lunar Impact Crater, Credit: NASA
During a recent 60 day period of time 23 space rocks came closer to Earth than our Moon

Bought by KCHW, KUGS Bellingham, Wash., KNVC Carson City Community Radio, RADIOLEX, KRWG and more


  • Added: Jul 14, 2024
  • Length: 02:00
  • Purchases: 9
806-Distant PHA
From: Albert Grauer
Series: Travelers In The Night
Caption: Radar Image Toutatis, Credit: NASA
It is hard to obtain time on the 8m Gemini South Observatory telescope on Cerro Pachon in Chile and the Large Binocular Telescope with its twin 8m ...

Bought by KCHW, KUGS Bellingham, Wash., KNVC Carson City Community Radio, RADIOLEX, KTAL-LP [Las Cruces Community Radio] and more


  • Added: Jul 07, 2024
  • Length: 02:00
  • Purchases: 9
805-Very Close Misses
From: Albert Grauer
Series: Travelers In The Night
Piece image
During a recent 60 day period asteroid hunters observed 23 asteroids which came closer to us than our Moon. Six of them passed closer to the Earth...

Bought by KCHW, KUGS Bellingham, Wash., KNVC Carson City Community Radio, RADIOLEX, KTAL-LP [Las Cruces Community Radio] and more


  • Added: Jun 30, 2024
  • Length: 02:00
  • Purchases: 9
804-Tracie’s Solo
From: Albert Grauer
Series: Travelers In The Night
Caption: Artists Conception Of Earth And An Asteroid, Credit: Texas A&M/NASA
After months of training Tracie came full circle during her first solo 3 night observing run on the 60 inch telescope as she hosted groups of visi...

Bought by KCHW, KUGS Bellingham, Wash., KNVC Carson City Community Radio, RADIOLEX, KTAL-LP [Las Cruces Community Radio] and more


  • Added: Jun 23, 2024
  • Length: 02:00
  • Purchases: 9
803-Monster NEO
From: Albert Grauer
Series: Travelers In The Night
Caption: Vesta, Credit: NASA
Since larger space rocks are rare, it was surprising when my Catalina Sky Survey teammate Hannes Groller found a half mile diameter asteroid travel...

Bought by KCHW, KUGS Bellingham, Wash., KTAL-LP [Las Cruces Community Radio], KNVC Carson City Community Radio, RADIOLEX and more


  • Added: Jun 16, 2024
  • Length: 02:00
  • Purchases: 8
802-Bok Comet
From: Albert Grauer
Series: Travelers In The Night
Caption: Halley's Comet, Credit: NASA
My Catalina Sky Survey teammate Kacper Wierzchos was asteroid hunting in the constellation of Draco with the Steward Observatory Bok 90 inch telesc...

Bought by KCHW, KUGS Bellingham, Wash., KNVC Carson City Community Radio, RADIOLEX, KICI Iowa City and more


  • Added: Jun 09, 2024
  • Length: 02:00
  • Purchases: 10
801-Jacqui’s PHA
From: Albert Grauer
Series: Travelers In The Night
Caption: Astronaut on an Asteroid , Credit: NASA (Advanced Concepts Program)
My Catalina Sky Survey teammate Jacqueline Fazekas was asteroid hunting with our small but mighty Schmidt telescope on Mt. Bigelow, Arizona when sh...

Bought by KCHW, Raven Radio, KNVC Carson City Community Radio, RADIOLEX, KKRN and more


  • Added: Jun 02, 2024
  • Length: 02:00
  • Purchases: 10
800-Telescope Reborn
From: Albert Grauer
Series: Travelers In The Night
Caption: In an artist’s rendering, light from quasars passes through intergalactic clouds of hydrogen gas. The light offers clues to the structure of the distant cosmos, Credit: NOIRLab/NSF/AURA/P. Marenfeld and DESI
In an astonishing rebirth, the Mayall 4-m telescope has jumped to the forefront of astronomy once again because it is sturdy and precise enough to...

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


  • Added: May 26, 2024
  • Length: 02:00
  • Purchases: 11
799-Nature's Gateways
From: Albert Grauer
Series: Travelers In The Night
Caption: Milky Way Rising Over the Gila Wilderness, Credit: Steven Miller
The Cosmic Campground International Dark Sky Sanctuary and the Aldo Leopold Gila Wilderness in New Mexico are gateways to nature where man is only ...

Bought by KCHW, KUGS Bellingham, Wash., KTAL-LP [Las Cruces Community Radio], KNVC Carson City Community Radio, RADIOLEX and more


  • Added: May 19, 2024
  • Length: 02:00
  • Purchases: 10
798-Destination Enceladus
From: Albert Grauer
Series: Travelers In The Night
Caption: Enceladus, Credit: ESA
Life on Earth appears to have formed in our oceans. Scientists are thus on the hunt for other worlds which have oceans of liquid water and thus po...

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


  • Added: May 12, 2024
  • Length: 02:00
  • Purchases: 11
797-Recoveries
From: Albert Grauer
Series: Travelers In The Night
Caption: Asteroid 2014 JO25, Credit: NASA Goldstone RADAR
It is essential that asteroid hunters keep track of potentially dangerous asteroids to make sure that their orbits haven’t changed as they encounte...

Bought by KCHW, Raven Radio, KNVC Carson City Community Radio, RADIOLEX, KRWG and more


  • Added: May 05, 2024
  • Length: 02:00
  • Purchases: 10
796-COMET C/2024 E1 (Wierzchos)-Preview
From: Albert Grauer
Series: Travelers In The Night
Caption: COMET C/2024 E1 (Wierzchos), Credit: skylive.com
On the 3rd of March 2024 while asteroid hunting with our 60 inch telescope on Mt. Lemmon , Arizona my Catalina Sky Survey teammate Kacper Wierzcho...

Bought by KCHW, Raven Radio, KTAL-LP [Las Cruces Community Radio], KNVC Carson City Community Radio, RADIOLEX and more


  • Added: Apr 28, 2024
  • Length: 02:00
  • Purchases: 10

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