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 6,100 PRX free purchases as well as more than 811,000 downloads on the internet. It has been aired on 59 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.


795 Pieces

Order by: Newest First | Oldest First
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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: 8
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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: 7
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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: 8
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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: 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: 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: 10
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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: 10
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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: 8
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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: 9
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: 9
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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: 9
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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: 7
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In 2019, asteroid hunters set a new record by discovering 2,433 Earth approaching objects including 85 which could potentially become a threat to p...

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  • Added: Jan 23, 2020
  • Length: 02:00
  • Purchases: 8
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Recently my Catalina Sky Survey teammate Teddy Pruyne, discovered a potentially dangerous and perhaps valuable asteroid with our 60 inch telescope ...

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  • Added: Jan 31, 2020
  • Length: 02:00
  • Purchases: 6
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A recently discovered asteroid spends most of its time high above the plane of the solar system far from our Sun. Unknown asteroids on such a path...

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  • Added: Feb 05, 2020
  • Length: 02:00
  • Purchases: 6
Caption: Comet P/2019 Y2 (Fuls) Imaged with the 40" telescope on Mt. Lemmon, Arizona with bias rates equal to the comet motion. It is 4-60 second exposures co-added together. The stars appear as trails since the telescope was tracking the comet., Credit:  Catalina Sky Survey/NASA/Lunar and Planetary Laboratory/University of Arizona
My Catalina Sky Survey teammate Carson Fuls was asteroid hunting in the constellation of Leo when he spotted a faint fuzzy looking object with a ta...

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  • Added: Feb 14, 2020
  • Length: 02:00
  • Purchases: 8
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Assuming the first potentially hazardous asteroid of 2020 has a chemical composition similar to the stony meteorites we find on Earth, it could co...

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  • Added: Feb 23, 2020
  • Length: 02:00
  • Purchases: 7
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SpaceX's new rockets fuel the dream of visiting some of the planet Mars' unique and spectacular wonders. Today you can visit the NASA Mars Curiosit...

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  • Added: Feb 27, 2020
  • Length: 02:00
  • Purchases: 8
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On his first night of solo observing with our Schmidt telescope on Mt. Bigelow, Arizona, my Catalina Sky Survey teammate Kacper Wierzchos discovere...

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  • Added: Mar 06, 2020
  • Length: 02:00
  • Purchases: 9
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The hunt is on for Earth like planets which are close enough for us to study in detail. The NASA Transiting Exoplanet Survey Satellite, or TESS for...

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  • Added: Mar 13, 2020
  • Length: 02:00
  • Purchases: 8