385E-421-New Aten

385E-421-New Aten

Author: Albert D. Grauer April 21, 2026 Duration: 2:01
Recently my Catalina Sky Survey teammates Carson Fuls and Greg Lenoard discovered an Aten asteroid which orbits the Sun once every 272 days and on a path that crosses the orbits of Venus and Earth a number of times each year. Atens account for only about 6% of the Earth approaching asteroids that asteroid hunters discover. They are relatively dim and difficult to discover because they spend most of their time inside the Earth's orbit with their sunlit side facing away from us. For example Carson and Greg's newly discovered asteroid, 2017 WJ16, is bright enough for asteroid hunters to track for only about 50 nights every couple of years. It is about 150 feet in diameter and travels on an orbit which can bring it to a bit more than three times the Moon's distance from Earth. When 2017 WJ16 is closer to the Sun than Earth it travels faster then we do allowing it to catch and just barely cross our orbit as we both travel about the Sun. In 2020, 2017 WJ16 will make one of it's closer approaches to us when it comes to about less than 5 times the Moon's distance from our home planet. At that time it will be traveling at 2.9 miles/second relative to us which is well within reach of our current rocket technology. I suspect that in the future if the pattern of colors which 2017 WJ16 reflects, reveals a high metal or water content humans will mine it to construct and operate their colonies in space.

Each episode of Travelers In The Night feels like a quiet, personal conversation under a dark sky. Hosted by astronomer Dr. Albert D. Grauer, this podcast brings the distant cosmos into sharp, intimate focus. Dr. Grauer isn't just an observer; he's an active participant in the hunt, working with the Catalina Sky Survey team that has consistently discovered near-Earth asteroids for years. In these brief and engaging segments, you'll hear firsthand accounts of what it's like to track these ancient celestial travelers-the asteroids and comets that silently pass by our world. The discussions move beyond simple facts to explore the real-world implications of these discoveries, from planetary defense to the sheer wonder of our dynamic solar system. Accompanied by the contemplative music of John Lyell's "Eternity," each installment offers a moment of calm reflection on humanity's place in the universe. It’s a perfect blend of grounded science and cosmic curiosity, making complex astronomical concepts accessible and deeply fascinating. For anyone who has ever looked up and wondered what's out there moving in the dark, this podcast provides a direct line to the front lines of discovery.
Author: Language: English Episodes: 50

Travelers In The Night
Podcast Episodes
911-Comet Brightness Explosion [not-audio_url] [/not-audio_url]

Duration: 2:01
Comet 220P/McNaught orbits the Sun once every 5.5 years on a path which is between Mars and Jupiter. At that extreme distance, more than 1.5 times the Earth’s distance from the Sun, it still receives a significant amount…
400E-441-Carson's Pair [not-audio_url] [/not-audio_url]

Duration: 2:01
My Catalina Sky Survey teammate Carson Fuls was observing, in the constellation Lynx, with our Schmidt telescope on Mt. Bigelow, Arizona , when within the space of only 35 minutes, he discovered two small space rocks wel…
910-Mega Constellations [not-audio_url] [/not-audio_url]

Duration: 2:01
In an experiment that will involve all of the residents of planet Earth SpaceX has asked the FCC for permission to launch 1 million satellites into low Earth orbit to create a solar powered data center. Since the agricul…
399E-440-Tracking Elon's Car [not-audio_url] [/not-audio_url]

Duration: 2:01
Elon Musk decided not to use a traditional mundane concrete block dummy payload for the first launch of the SpaceX Falcon Heavy launch vehicle to test his rockets lifting capabilities. After orbiting the Earth for 5 hour…
909- 2026 JH2 [not-audio_url] [/not-audio_url]

Duration: 2:01
My Catalina Sky Survey teammates Josh Hogan and Alessandra Serrano were asteroid hunting in the constellation of Ursa Major when they discovered a fast moving point of light in the night sky. My team the Catalina Sky Sur…
398E-439-Big and Close [not-audio_url] [/not-audio_url]

Duration: 2:01
Using our Schmidt telescope on Mt. Bigelow, Arizona, my Catalina Sky Survey teammate Richard Kowalski was searching for Earth approaching asteroids in the constellation of Virgo when he discovered a moving point of light…
908-Head On [not-audio_url] [/not-audio_url]

Duration: 2:01
Asteroid hunters find asteroids by looking for objects which change their position relative to the stars. If an asteroid happened to match the Earth’s motion it might appear stationary and thus be virtually undetectable…
397E-438-Bright Darkness [not-audio_url] [/not-audio_url]

Duration: 2:01
Most of the humans on planet Earth have never witnessed that the natural night sky is not dark; but rather it is alive with it's own lights. To see for yourself, pick a dark sky place near you like the Cosmic Campground…
907-Large and Close [not-audio_url] [/not-audio_url]

Duration: 2:01
My Catalina Sky Survey teammate Josh Hogan was asteroid hunting in the constellation of Ursa Major with our small but mighty Schmidt telescope when he spotted a fast moving point of light in a set of his images and poste…
396E-437-Christmas Comet [not-audio_url] [/not-audio_url]

Duration: 2:01
On December 25, 2017, while searching for Earth approaching asteroids in the constellation of Virgo, the Universe gave my Catalina Sky Survey teammate Greg Leonard a Christmas present in the form of a comet which now bea…