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 4,850 PRX free purchases as well as more than 720,000 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.


712 Pieces

Order by: Newest First | Oldest First
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Over the past 50 years, in the interior of Australian meteorites, scientists have discovered a large variety of extraterrestrial organic substances...

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  • Added: Jan 18, 2020
  • Length: 02:00
  • Purchases: 6
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Recently, my Catalina Sky Survey teammate David Rankin's backyard all sky camera in Tucson, Arizona recorded a brilliant fireball meteor which took...

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  • Added: Jan 09, 2020
  • Length: 02:00
  • Purchases: 7
Caption: Comet Neat, Credit: NASA/NOAO/NSF/T. Rector/Z. Levay/L.Frattare
My Catalina Sky Survey teammate Hannes Groeller was asteroid hunting, in the constellation of Hydra, with our 60 inch telescope on Mt. Lemmon, Ariz...

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  • Added: Jan 02, 2020
  • Length: 02:00
  • Purchases: 7
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Recently a group of high inclination asteroids hiding in Jupiter's shadow have been identified. Encounters with the giant planet's gravity could c...

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  • Added: Dec 28, 2019
  • Length: 02:00
  • Purchases: 7
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Recent findings, published in the Journal of Geophysical Research suggests that there is more water locked in the minerals of nearby asteroids, whi...

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  • Added: Dec 21, 2019
  • Length: 02:00
  • Purchases: 6
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At its closest point, a small space rock comes to only 1/3 of Mercury's average distance from the solar surface and receives 9 times the amount of...

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  • Added: Dec 13, 2019
  • Length: 02:00
  • Purchases: 8
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Nine hours after it was discovered a tiny, 4 foot in diameter, space rock streaked less than 4,000 miles above southern Africa as it passed throug...

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  • Added: Dec 06, 2019
  • Length: 02:00
  • Purchases: 8
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October of 2019 was a record breaking month for my team the Catalina Sky Survey during which we discovered 240 Earth approaching asteroids. This di...

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  • Added: Nov 29, 2019
  • Length: 02:00
  • Purchases: 6
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In ancient times, Aboriginal people in southwestern Australia quarried fine grained rock on an ancient hill called Barlangi Rock to make very sharp...

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  • Added: Nov 22, 2019
  • Length: 02:00
  • Purchases: 6
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In the space of less than 13 hours four small space rocks zipped through the Earth-Moon neighborhood. All of them were discovered by my team, the N...

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  • Added: Nov 16, 2019
  • Length: 02:00
  • Purchases: 6
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On a clear but windy night, near the fall equinox, my Catalina Sky Survey teammate Greg Leonard was able to discover and verify 23 new Earth approa...

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  • Added: Nov 10, 2019
  • Length: 02:00
  • Purchases: 5
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An object the size of this huge space rock enters the Earth's atmosphere every 180,000 years with an energy of 5,800 megatons of TNT. The only pla...

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  • Added: Oct 31, 2019
  • Length: 02:00
  • Purchases: 6
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During the monsoon rainy season, my Catalina Sky Survey teammate, Hannes Groeller took a vacation in his native Austria. Returning to begin the fa...

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  • Added: Oct 23, 2019
  • Length: 02:00
  • Purchases: 5
Caption: Siding Spring Observatory, Credit: www.destinationsjourney.com
One of the most frustrating situations for an asteroid hunter is a night when the stars are shining bright above the mountain but the humidity is s...

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  • Added: Oct 19, 2019
  • Length: 02:00
  • Purchases: 5
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On Earth plants provide us with medicines, food to eat, and oxygen to breathe. In the future, in addition to providing treats like strawberries it ...

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  • Added: Oct 10, 2019
  • Length: 02:00
  • Purchases: 9
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The race to explore the Moon by robots and eventually human lunar colonists is on. Near the lunar south pole human space colonists could use solar ...

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  • Added: Oct 04, 2019
  • Length: 02:00
  • Purchases: 7
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In the American southwest we welcome the Monsoon rainy season during which the Earth receives much needed moisture. However, after six weeks of clo...

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  • Added: Sep 27, 2019
  • Length: 02:00
  • Purchases: 5
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In a most amazing turn of events, an international team of astronomers have published research in the Journal Earth and Planetary Science Letters w...

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  • Added: Sep 20, 2019
  • Length: 02:00
  • Purchases: 5
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The Phoenicids are a minor meteor shower which was discovered by the first Japanese Antarctic Research Expedition on December 5, 1956. To spot the ...

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  • Added: Sep 13, 2019
  • Length: 02:00
  • Purchases: 6
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Imagine how strange and wonderful it would be to witness such an event. When the impacting object hit it produced huge boulders, which held loose...

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  • Added: Sep 06, 2019
  • Length: 02:00
  • Purchases: 5