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 4,800 PRX free purchases as well as more than 710,000 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.


705 Pieces

Order by: Newest First | Oldest First
706-Wonders to Behold(492)
From: Al Grauer
Series: Travelers In The Night
Caption: M107, Credit: HST-NASA
From the time 3 million years ago that our ancestor Lucy walked in what is now Ethiopia until the widespread use of electric lighting began in the ...

Bought by Raven Radio, KKRN, KRWG, KTAL-LP [Las Cruces Community Radio], and KICI Iowa City


  • Added: Aug 07, 2022
  • Length: 02:00
  • Purchases: 5
705-One Half Inch(491)
From: Al Grauer
Series: Travelers In The Night
Caption: Hubble Image. Sharp star images., Credit: NASA
Fuzzy, spread out, asteroid images due to atmospheric and or equipment produced distortions can cause important objects to slip through an asteroid...

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


  • Added: Jul 31, 2022
  • Length: 02:00
  • Purchases: 4
704-Mini-Moons(490)
From: Al Grauer
Series: Travelers In The Night
Caption: Earth Captures Mini-Moon, Credit: K. Teramura UHIFA
There are likely to be hundreds smaller than softball sized and perhaps several dozen football to beachball sized, natural Earth mini moons, which ...

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


  • Added: Jul 24, 2022
  • Length: 02:00
  • Purchases: 6
703-Martian Water(489)
From: Al Grauer
Series: Travelers In The Night
Caption: Mars, Credit: NASA
Exciting new research indicates that there could be a lake of liquid water beneath the south Martian polar cap. Further research will be required t...

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


  • Added: Jul 17, 2022
  • Length: 02:00
  • Purchases: 7
702-20 Years(488)
From: Al Grauer
Series: Travelers In The Night
Caption: Asteroids, Credit: NASA
It has been 20 years since the world woke up to the news that a half mile diameter asteroid, 1997 XF11, discovered by Space Watch on Kitt Peak, had...

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


  • Added: Jul 10, 2022
  • Length: 02:00
  • Purchases: 7
701-Touching The Sun(487)
From: Al Grauer
Series: Travelers In The Night
Caption: Parker Spacecraft, Credit: NASA
Imagine a spacecraft traveling at a speed that would take it from New York to Tokyo in less than a minute, a mere 4 million miles from the surface ...

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


  • Added: Jul 03, 2022
  • Length: 02:00
  • Purchases: 6
700-Martian Storms(486)
From: Al Grauer
Series: Travelers In The Night
Caption: Martian Dust Storm, Credit: NASA
In a few weeks ,as Earth and Mars moved closer together, a dust storm engulfed most of the red planet making it impossible to see its surface featu...

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


  • Added: Jun 26, 2022
  • Length: 02:00
  • Purchases: 6
699-Last One(485)
From: Al Grauer
Series: Travelers In The Night
Caption: The last of the day's sunlight pokes through a monsoon storm building up over the northwest area of the valley, generating lightning strikes but little precipitation, Saturday, July 8, 2017, Tucson, Ariz., Credit: Kelly Presnell / Arizona Daily Star
A huge Earth approaching asteroid is discovered right before the 2018 monsoon rains settled into the American Southwest. This weather imposed break...

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


  • Added: Jun 19, 2022
  • Length: 02:00
  • Purchases: 6
698-Aliens?(484)
From: Al Grauer
Series: Travelers In The Night
Caption: Planetary Alignment over Australian Radio Telescope, Credit: Graeme L. White & Glen Cozens (James Cook University)
Most Astronomers find it hard to believe that given perhaps a trillion planets in the Milky Way alone that our Earth is the only one which hosts li...

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


  • Added: Jun 12, 2022
  • Length: 02:00
  • Purchases: 7
697-Double Trouble(483)
From: Al Grauer
Series: Travelers In The Night
Caption: Binary Asteroid, Credit: ESA
Asteroid hunters have discovered a strange asteroid pair. How they came to be together and what humans would do if such a large double trouble obje...

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


  • Added: Jun 05, 2022
  • Length: 02:00
  • Purchases: 6
696-Botswana Fragment(482)
From: Al Grauer
Series: Travelers In The Night
Caption: Fireball Exploding, Credit: NASA
An object is tracked in outer space, seen to explode in our atmosphere, and had a fragment of it discovered on the ground. Its analysis will help h...

Bought by KBCS 91.3 FM Community Radio, KICI Iowa City, RADIOLEX, WTIP, KGLP and more


  • Added: May 29, 2022
  • Length: 02:00
  • Purchases: 7
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 KICI Iowa City, KGLP, RADIOLEX, WTIP, KRWG and more


  • Added: May 22, 2022
  • Length: 02:00
  • Purchases: 7
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 KICI Iowa City, KGLP, WTIP, RADIOLEX, KRWG and more


  • Added: May 15, 2022
  • Length: 02:00
  • Purchases: 6
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 KICI Iowa City, KGLP, WTIP, RADIOLEX, KRWG and more


  • Added: May 08, 2022
  • Length: 02:00
  • Purchases: 7
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 KGLP, RADIOLEX, KICI Iowa City, WTIP, KKRN and more


  • Added: May 01, 2022
  • Length: 02:00
  • Purchases: 6
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

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