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 4,400 PRX free purchases as well as more than 625,000 downloads and 33,000 followers 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 script and a list of references for each program piece can be found on travelersinthenight.org.

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.


659 Pieces

Order by: Newest First | Oldest First
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For millennia humans have gazed into the night sky and have dreamed of traveling to the stars. It is not beyond the realm of possibility that one ...

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


  • Added: Dec 11, 2020
  • Length: 02:00
  • Purchases: 8
Caption: Artists Conception Apophis, Credit: Dan Durda – FIAAA
Currently scientists, governments, and private citizens are preparing to mitigate a disaster caused by a large incoming space rock. To test techn...

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


  • Added: Dec 04, 2020
  • Length: 02:00
  • Purchases: 7
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Recently my Catalina Sky Survey teammate David Rankin searched for asteroids, as close to the Sun as possible with our 60 inch telescope on Mt. Lem...

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


  • Added: Nov 28, 2020
  • Length: 02:00
  • Purchases: 7
Piece image
Recently my Catalina Sky Survey teammate Teddy Pruyne was observing in the constellation Lacerta with our 60 inch telescope on Mt. Lemmon, Arizona ...

Bought by KGLP, KBCS 91.3 FM Community Radio, KKRN, KRWG, Harford Community Radio and more


  • Added: Nov 20, 2020
  • Length: 02:00
  • Purchases: 7
Caption: Fitzgerald River National Park in Western Australia, Credit: Yewenyi, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=1370203
In western Australia, rock samples and maps of the local geology obtained while exploring for gold show evidence of a 3 mile diameter meteor crater...

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  • Added: Nov 13, 2020
  • Length: 02:00
  • Purchases: 7
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A large solar coronal mass ejection could put astronauts, airline passengers, power grids, electronic devices, and satellites at risk. Participa...

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


  • Added: Nov 06, 2020
  • Length: 02:00
  • Purchases: 8
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The Atira class of Earth approaching asteroids are ones whose orbit is entirely within that of the Earth's path about the Sun. Less than 3 dozen o...

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  • Added: Oct 30, 2020
  • Length: 02:00
  • Purchases: 7
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Recently, in the journal Nature Astronomy, a team of astronomers led by Dr. Faustine Cantalloube of the Max-Planck Institute for Astronomy released...

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  • Added: Oct 23, 2020
  • Length: 02:00
  • Purchases: 8
Piece image
Most life on Earth is synchronized to the regular cycles of day and night. Until about a hundred years ago, the natural night sky was familiar to ...

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


  • Added: Oct 18, 2020
  • Length: 02:00
  • Purchases: 8
Piece image
Auroral displays have been observed and reported on throughout human history. Data from NASA's 5 Themis (Themm us) satellites analyzed by powerfu...

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  • Added: Oct 09, 2020
  • Length: 02:00
  • Purchases: 7
Caption: Atmospheric gravity waves seen from space, Credit:  Jeff Schmaltz – (NASA)
Atmospheric gravity waves can be powerful. In September of 2018 two glider pilots surfed an atmospheric gravity wave created by high speed polar w...

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  • Added: Oct 02, 2020
  • Length: 02:00
  • Purchases: 8
Piece image
Statistically asteroid hunters have found more than 90% of the asteroids whose impact could cause global climate change. However, recently, my Ca...

Bought by KGLP, WTIP, WLPR , KSFR, KKRN and more


  • Added: Sep 25, 2020
  • Length: 02:00
  • Purchases: 7
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Recently amateur astronomer, Worachate Boonplod discovered the 4049th comet recorded in the imaging data produced by SOHO, the ESA/NASA Solar and ...

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


  • Added: Sep 18, 2020
  • Length: 02:00
  • Purchases: 8
Caption: Artistic illustration of an asteroid approaching Earth. , Credit: Image Credit: Dieter Spannknebel / Getty Images
Nearly every day during the monsoon rainy season in the American southwest, afternoon thunderstorms require putting mountain top telescopes and ca...

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


  • Added: Sep 11, 2020
  • Length: 02:00
  • Purchases: 8
Piece image
Approximately 100 million metric tons of mostly sand grained sized space dust enters the Earth's atmosphere every day. Occasionally, larger pieces ...

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


  • Added: Sep 04, 2020
  • Length: 02:00
  • Purchases: 7
Caption: A lightning bolt strikes in the western part of the city, part of the second of two bands of monsoon storms to roll over the area, Tucson, Ariz., August 28, 2019., Credit: Kelly Presnell / Arizona Daily Star
Every year the Monsoon summer rains come to the American southwest in July and August. After the threat of wild fires has been rained out, monsoo...

Bought by WTIP, WLPR , KSFR, KKRN, KRWG and more


  • Added: Aug 28, 2020
  • Length: 02:00
  • Purchases: 7
Caption: The Kitt Peak National Observatory in Arizona captured this image of Comet NEAT on May 7, 2004. , Credit: NASA
There may be as many as a trillion small icy objects in the Oort cloud near the outer edge of our solar system. Very rarely one of these frozen ice...

Bought by KSFR, WTIP, WLPR , Allegheny Mountain Radio, KKRN and more


  • Added: Aug 21, 2020
  • Length: 02:00
  • Purchases: 8
Piece image
Our star is only one among hundreds of billions in the Milky Way galaxy which itself is only one of a hundred billion or more galaxies in the known...

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  • Added: Aug 14, 2020
  • Length: 02:00
  • Purchases: 9
Piece image
Some stars can have flares which can cause them to more than double in brightness in a few minutes. Fortunately our Sun does not do that and the Ea...

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  • Added: Aug 07, 2020
  • Length: 02:00
  • Purchases: 8
Piece image
Phaethon (Faith on) is a strange, 4 mile diameter, blueish asteroid. It travels on an orbit which comes so close to the Sun that its exterior is h...

Bought by WLPR , WTIP, Allegheny Mountain Radio, KSFR, Harford Community Radio and more


  • Added: Jul 31, 2020
  • Length: 02:00
  • Purchases: 8