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 5,650 PRX free purchases as well as more than 786,000 downloads on the internet. It has been aired on 57 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.


765 Pieces

Order by: Newest First | Oldest First
686-Big Atira(464)
From: Albert 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 Simply Beautiful, KGLP, KICI Iowa City, RADIOLEX, KKRN and more


  • Added: Mar 20, 2022
  • Length: 02:00
  • Purchases: 8
685-Exiled Asteroid(463)
From: Albert 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 Simply Beautiful, KGLP, KICI Iowa City, WTIP, KKRN and more


  • Added: Mar 13, 2022
  • Length: 02:00
  • Purchases: 7
684-Our View(462)
From: Albert 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 Simply Beautiful, KGLP, WTIP, RADIOLEX, KRWG and more


  • Added: Mar 06, 2022
  • Length: 02:00
  • Purchases: 8
683-TESS(460)
From: Albert 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 Simply Beautiful, KICI Iowa City, KTAL-LP [Las Cruces Community Radio], KGLP, Harford Community Radio and more


  • Added: Feb 27, 2022
  • Length: 02:00
  • Purchases: 8
682-Falling Space Rocks(459)
From: Albert 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 Allegheny Mountain Radio, Simply Beautiful, KGLP, KTAL-LP [Las Cruces Community Radio], WTIP and more


  • Added: Feb 20, 2022
  • Length: 02:00
  • Purchases: 8
681-17,000 to Go(455)
From: Albert 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 Allegheny Mountain Radio, Simply Beautiful, KGLP, WTIP, KRWG and more


  • Added: Feb 13, 2022
  • Length: 02:00
  • Purchases: 8
680-Comets and Asteroids(454)
From: Albert 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 Allegheny Mountain Radio, Simply Beautiful, KGLP, RADIOLEX, WTIP and more


  • Added: Feb 06, 2022
  • Length: 02:00
  • Purchases: 9
679-Hammer(453)
From: Albert 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 Allegheny Mountain Radio, Simply Beautiful, RADIOLEX, WTIP, KGLP and more


  • Added: Jan 30, 2022
  • Length: 02:00
  • Purchases: 8
678-Greg's Comet(425)
From: Albert 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 Allegheny Mountain Radio, Simply Beautiful, WTIP, KGLP, RADIOLEX and more


  • Added: Jan 22, 2022
  • Length: 02:00
  • Purchases: 9
677-30 Years of Fireballs(457)
From: Albert 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 Allegheny Mountain Radio, Simply Beautiful, KGLP, RADIOLEX, KICI Iowa City and more


  • Added: Jan 16, 2022
  • Length: 02:00
  • Purchases: 10
676-Cloud 7(449)
From: Albert 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 Allegheny Mountain Radio, Simply Beautiful, KGLP, KICI Iowa City, KRWG and more


  • Added: Jan 09, 2022
  • Length: 02:00
  • Purchases: 9
675-Nuking An Asteroid(447)
From: Albert Grauer
Series: Travelers In The Night
Caption: Artists Conception, Credit: Dan Durda
Tonight, even though the chances are extremely slim, an asteroid hunter could find a sizable asteroid on a collision course with planet Earth. If w...

Bought by Allegheny Mountain Radio, Simply Beautiful, KGLP, KICI Iowa City, RADIOLEX and more


  • Added: Jan 02, 2022
  • Length: 02:00
  • Purchases: 11
674-Asteroid Homestead(446)
From: Albert Grauer
Series: Travelers In The Night
Caption: Asteroid Mining, Credit: NASA
In the future one can envision a space mining family boarding a descendent of the SpaceX Falcon Heavy Launch Vehicle for a trip into low Earth orb...

Bought by Allegheny Mountain Radio, Simply Beautiful, KICI Iowa City, RADIOLEX, KGLP and more


  • Added: Dec 25, 2021
  • Length: 02:00
  • Purchases: 7
673-Christmas Comet(437)
From: Albert Grauer
Series: Travelers In The Night
Caption: Halley's Comet, Credit: NASA
On December 25, 2017, while searching for Earth approaching asteroids in the constellation of Virgo, the Universe gave my Catalina Sky Survey team...

Bought by Allegheny Mountain Radio, Simply Beautiful, WTIP, KKRN, KRWG and more


  • Added: Dec 19, 2021
  • Length: 02:00
  • Purchases: 7
672-Meteor Whispers(427)
From: Albert Grauer
Series: Travelers In The Night
Caption: Fireball Exploding, Credit: NASA
Recent scientific studies have begun to shed light on the interesting mystery of how the small number of what we now call electrophonic meteors pro...

Bought by Allegheny Mountain Radio, Simply Beautiful, KGLP, RADIOLEX, Harford Community Radio and more


  • Added: Dec 12, 2021
  • Length: 02:00
  • Purchases: 9
671-Long Winter Nights(424)
From: Albert Grauer
Series: Travelers In The Night
Caption: Mt. Lemmon, AZ snow storm, Credit: A.D. Grauer
Long Winter nights with good seeing, from start to finish, are those on which the asteroid hunter makes new discoveries while being treated to view...

Bought by Allegheny Mountain Radio, Simply Beautiful, KGLP, KICI Iowa City, RADIOLEX and more


  • Added: Dec 05, 2021
  • Length: 02:00
  • Purchases: 10
670-Laser Surfing(364)
From: Albert Grauer
Series: Travelers In The Night
Caption: Laser Sail, Credit: Project Breakthrough
Laser propelled ultra light space probes could be sent to explore nearby worlds.

Bought by Allegheny Mountain Radio, Simply Beautiful, KICI Iowa City, RADIOLEX, KGLP and more


  • Added: Nov 28, 2021
  • Length: 02:00
  • Purchases: 10
669-Seeds(356)
From: Albert Grauer
Series: Travelers In The Night
Caption: Voyager Leaving Solar System, Credit: NASA
What plant seeds will be left for interstellar travelers to take with them?

Bought by Allegheny Mountain Radio, Simply Beautiful, KICI Iowa City, KGLP, KRZA and more


  • Added: Nov 21, 2021
  • Length: 02:00
  • Purchases: 11
668-Dry Sands(420)
From: Albert Grauer
Series: Travelers In The Night
Caption: Mars, Credit: NASA
Intriguing features which change with the Martian seasons mimic flows of liquid water on the Earth's surface.

Bought by Allegheny Mountain Radio, Simply Beautiful, KICI Iowa City, KGLP, RADIOLEX and more


  • Added: Nov 14, 2021
  • Length: 02:00
  • Purchases: 10
667-ET's Cigar(419)
From: Albert Grauer
Series: Travelers In The Night
Caption: Artist's concept of interstellar object1I/2017 U1 ('Oumuamua) as it passed through the solar system after its discovery in October 2017. The aspect ratio of up to 10:1 is unlike that of any object seen in our own solar system., Credit: European Southern Observatory / M. Kornmesser
The first alien object to observed visiting our solar system arrives from truly deep space and leaves us with the mystery of what it is and how it ...

Bought by Allegheny Mountain Radio, Simply Beautiful, KICI Iowa City, KGLP, RADIOLEX and more


  • Added: Nov 07, 2021
  • Length: 02:00
  • Purchases: 10

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