Travelers In The Night

Series produced by Al 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 4,600 PRX free purchases as well as more than 690,000 downloads on the internet. It has been aired on 54 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.


694 Pieces

Order by: Newest First | Oldest First
695-A Large Visitor(480)
From: Al Grauer
Series: Travelers In The Night
Piece image
Statistically, asteroid hunters are thought to have discovered 90% of our potentially dangerous celestial neighbors greater than 1 KM in diameter. ...

Bought by WTIP, KRWG, KKRN, and KTAL-LP [Las Cruces Community Radio]


  • Added: May 22, 2022
  • Length: 02:00
  • Purchases: 4
694-Comet Catalina(479)
From: Al Grauer
Series: Travelers In The Night
Caption: Comet Johnson, Credit: CSS/NASA/U.Arizona
Comet C/2018 M1 (Catalina) is eternal in the sense that it will likely wander the vast space between the stars in our Milky Way Galaxy until the en...

Bought by RADIOLEX, KRWG, and KKRN


  • Added: May 15, 2022
  • Length: 02:00
  • Purchases: 3
693-Comet Leonard III(478)
From: Al Grauer
Series: Travelers In The Night
Caption: Comet Christensen, Credit: NASA
My Catalina Sky Survey teammate Greg Leonard knew he had bagged his third comet when he spotted an unknown fuzzy object with a broad tail moving th...

Bought by RADIOLEX, KRWG, KKRN, and KTAL-LP [Las Cruces Community Radio]


  • Added: May 08, 2022
  • Length: 02:00
  • Purchases: 4
692-Lonely Fragment(475)
From: Al Grauer
Series: Travelers In The Night
Piece image
A 2000 foot diameter space rock has stories to tell about violent events long ago. Asteroid hunters are eager to track this huge collision fragment...

Bought by RADIOLEX, KICI Iowa City, WTIP, KKRN, and KRWG


  • Added: May 01, 2022
  • Length: 02:00
  • Purchases: 5
691-Earth-Venus Shuttle(474)
From: Al Grauer
Series: Travelers In The Night
Piece image
A 100 foot diameter asteroid is spotted on one of its regular trips between the orbits of Venus and Earth. Its ultimate fate is to collide with one...

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


  • Added: Apr 24, 2022
  • Length: 02:00
  • Purchases: 7
690-Peek A Boo Asteroid(468)
From: Al Grauer
Series: Travelers In The Night
Caption: Artist's concept of what binary asteroid 2017 YE5 might look like. The two objects showed striking differences in radar reflectivity, which could indicate that they have different surface properties., Credit: NASA/JPL-Caltech
A strange asteroid plays hide and seek with frustrated astronomers.

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


  • Added: Apr 17, 2022
  • Length: 02:00
  • Purchases: 6
689-Botswana Bound(471)
From: Al Grauer
Series: Travelers In The Night
Caption: Fragments of the asteroid 2018 LA scattered over a wide area in Botswana’s Central Kalahari Game Reserve., Credit: Alexande Proyer
A small space rock with a diameter less than the height of an NBA basketball player had just crossed the orbit of our Moon on a collision course wi...

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


  • Added: Apr 10, 2022
  • Length: 02:00
  • Purchases: 7
688-Martian Asteroid Hunters(470)
From: Al Grauer
Series: Travelers In The Night
Caption: About 1000 Viking Orbiter red- and violet-filter images have been processed to provide global color coverage of Mars at a scale of 1 km/pixel., Credit: NASA/JPL-Caltech/USGS
The life of an asteroid hunter on Mars will be interesting and exciting. The double planet, our Earth and Moon, in the Martian night sky will be an...

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


  • Added: Apr 03, 2022
  • Length: 02:00
  • Purchases: 7
687-Returnee(465)
From: Al Grauer
Series: Travelers In The Night
Caption: Asteroid, Credit: NASA
After being lost for ten years, the asteroid 2010 WC9 was re-discovered about a week before it came very close to Earth.

Bought by KICI Iowa City, RADIOLEX, KGLP, KKRN, KRWG and more


  • Added: Mar 27, 2022
  • Length: 02:00
  • Purchases: 6
686-Big Atira(464)
From: Al Grauer
Series: Travelers In The Night
Caption: This view of asteroid Bennu ejecting particles from its surface on Jan. 6, 2019, was created by combining two images taken by the NavCam 1 imager aboard NASA's OSIRIS-REx spacecraft: a short exposure image, which shows the asteroid clearly, and a long-exp, Credit: NASA/Goddard/University of Arizona/Lockheed Martin
The recent discovery of an asteroid, whose orbit lies completely within that of the Earth, reminds asteroid hunters to continue to search near the ...

Bought by KGLP, KICI Iowa City, RADIOLEX, KKRN, KRWG and more


  • Added: Mar 20, 2022
  • Length: 02:00
  • Purchases: 7
685-Exiled Asteroid(463)
From: Al Grauer
Series: Travelers In The Night
Caption: Artist’s concept illustrating a catastrophic collision between two rocky exoplanets in the planetary system BD +20 307, turning both into dusty debris. Ten years ago, scientists speculated that the warm dust in this system was a result of a planet-to-plan, Credit: NASA/SOFIA/Lynette Cook
An asteroid is exiled to the outer regions of the solar system during Jupiter's rampaging tack away from the Sun long ago. During that process enou...

Bought by KGLP, KICI Iowa City, WTIP, KKRN, KRWG and more


  • Added: Mar 13, 2022
  • Length: 02:00
  • Purchases: 6
684-Our View(462)
From: Al Grauer
Series: Travelers In The Night
Caption: Night Sky, Credit: NPS
Modern technology provides us with stunning views of objects in the Universe in wavelengths invisible to our eyes, however, nothing is as moving an...

Bought by KGLP, WTIP, RADIOLEX, KRWG, KICI Iowa City and more


  • Added: Mar 06, 2022
  • Length: 02:00
  • Purchases: 7
683-TESS(460)
From: Al Grauer
Series: Travelers In The Night
Caption: TESS Spacecraft, Credit: NASA
To find planets close to home NASA has launched TESS the Transiting Exoplanet Satellite which will monitor more than 200,000 nearby, stars over the...

Bought by KICI Iowa City, KTAL-LP [Las Cruces Community Radio], KGLP, Harford Community Radio, KKRN and more


  • Added: Feb 27, 2022
  • Length: 02:00
  • Purchases: 7
682-Falling Space Rocks(459)
From: Al Grauer
Series: Travelers In The Night
Caption: Over 100 meteors are recorded in this composite image taken during the peak of the Geminid meteor shower in 2014., Credit: NASA/MSFC/Danielle Moser, NASA's Meteoroid Environment Office
In the early evening of January 17, 2018 six hundred and seventy four observers in 11 States and Canada reported a fireball meteor streaking across...

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


  • Added: Feb 20, 2022
  • Length: 02:00
  • Purchases: 6
681-17,000 to Go(455)
From: Al Grauer
Series: Travelers In The Night
Caption: NEO Surveyor will be based on NEOCam (above), a finalist in the previous round of the Discovery program, and will feature an infrared telescope to look for near Earth objects., Credit: Credit: NASA/JPL
So far asteroid hunters have discovered about 8,000 of the 25,000, large, potentially hazardous asteroids, suspected to exist, leaving 17,000 more ...

Bought by KGLP, WTIP, KRWG, KKRN, Harford Community Radio and more


  • Added: Feb 13, 2022
  • Length: 02:00
  • Purchases: 6
680-Comets and Asteroids(454)
From: Al Grauer
Series: Travelers In The Night
Caption: Fragments of the Sutter’s Mill meteorite fall collected by NASA Ames and SETI Institute meteor astronomer Peter Jenniskens in the evening of Tuesday April 24, 2012, two days after the fall. This was the second recovered find., Credit: NASA Ames/Eric James
If you set your mind to it, you can find and hold a sample of an asteroid, called a meteorite, which has landed on the Earth's surface. On the othe...

Bought by KGLP, RADIOLEX, WTIP, Harford Community Radio, KRWG and more


  • Added: Feb 06, 2022
  • Length: 02:00
  • Purchases: 7
679-Hammer(453)
From: Al Grauer
Series: Travelers In The Night
Caption: Artist's illustration of NASA's Double Asteroid Redirection Test (DART) which will crash into the asteroid Didymos., Credit: NASA/John Hopkins University/Cov
When Asteroid Hunters find a relatively large asteroid on a collision course with planet Earth, the challenge is to change its path to make it miss...

Bought by RADIOLEX, WTIP, KGLP, KRWG, KKRN and more


  • Added: Jan 30, 2022
  • Length: 02:00
  • Purchases: 6
678-Greg's Comet(425)
From: Al Grauer
Series: Travelers In The Night
Caption: Comet Lovejoy, Credit: NASA
Greg's comet comes into our neighborhood once per human lifetime and spends most of it's time in the lonely space high above or far below the rest ...

Bought by WTIP, KGLP, RADIOLEX, KRWG, KKRN and more


  • Added: Jan 22, 2022
  • Length: 02:00
  • Purchases: 7
677-30 Years of Fireballs(457)
From: Al Grauer
Series: Travelers In The Night
Caption: 30 years of fireballs, Credit: NASA
Fireballs are meteors which become brighter than the planet Venus and can sometimes be seen in the daytime. If you are lucky to see a fireball send...

Bought by KGLP, RADIOLEX, KICI Iowa City, KKRN, WTIP and more


  • Added: Jan 16, 2022
  • Length: 02:00
  • Purchases: 8
676-Cloud 7(449)
From: Al Grauer
Series: Travelers In The Night
Caption: Asteroids and Earth, Credit: ESA:P. Carril
To give you an idea of the asteroid traffic in our neighborhood, on a mostly cloudy night, through holes in the clouds, in a space of less than 2 h...

Bought by KGLP, KICI Iowa City, KRWG, WTIP, KKRN and more


  • Added: Jan 09, 2022
  • Length: 02:00
  • Purchases: 7

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