376E-412-Tiny Space Rock

376E-412-Tiny Space Rock

Author: Albert D. Grauer February 17, 2026 Duration: 2:01
Eighteen hours before my Catalina Sky Survey teammate Rose Matheny first spotted a small space rock with our Schmidt telescope on Mt. Bigelow, Arizona it had passed less than the Earth's diameter from the surface of our planet. Rose was able to discover this Smart Car sized space rock after it moved out of the Sun's glare. At this point it was about the Moon's distance from her and was traveling away at 3.4 mi/s. After Rose posted her discovery observations on the Minor Planet Center's Near Earth Object Confirmation page, for the next 24 hours it was tracked by telescopes in Spain, Illinois, and Arizona. Scientists at the Minor Planet Center used these data to calculate it's orbit around the Sun, estimate it's size and give it the name 2017 UJ2. This small asteroid had come near the Earth in 1978 but was invisible to the technology which astronomers had available at the time. 2017 UJ2 will not come close enough for us to detect in the foreseeable future, however, there are likely to be tens of millions of others like it which can come close to Earth. A small asteroid the size of Rose's discovery is likely to enter our atmosphere at least once a year and explodes at about 4 times higher than airliners fly. If such an event happened at night and you were lucky enough to see it you would be treated to a fantastic light show. If you are as lucky as a power ball winner you might even be able to find a piece of it on the ground.

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: 1000

Travelers In The Night
Podcast Episodes
404-Jess's Find [not-audio_url] [/not-audio_url]

Duration: 2:01
Large undiscovered Earth approaching asteroids are still out there.
403-Double Comet [not-audio_url] [/not-audio_url]

Duration: 2:01
A strange object consisting of two mile diameter asteroids surrounded by a gas cloud is orbiting our Sun.
402-Above Scotland [not-audio_url] [/not-audio_url]

Duration: 2:01
The CubeSat industry is making relatively low cost exploration of space possible and is creating heretofore undreamed of opportunities for the human exploration of space.
401-Night Vision [not-audio_url] [/not-audio_url]

Duration: 2:01
Experience the wonders of the Universe first hand using your night vision.
400-Roving Venus [not-audio_url] [/not-audio_url]

Duration: 2:01
To Survive on Venus where the temperature is 864F and the surface air pressure is 90 times that of Earth, NASA and JPL engineers are exploring the concept of avoiding the use of modern temperature sensitive electronics b…
399-Moons of Florence [not-audio_url] [/not-audio_url]

Duration: 2:01
The largest asteroid to come near the Earth in 100 years has two moons.
398-Mars Rocks [not-audio_url] [/not-audio_url]

Duration: 2:01
A visitor from Mars lands near Tata, Morocco on July 11, 2011. Pieces of it are worth 10 times their weight in Gold.
397-Spotting Meteors [not-audio_url] [/not-audio_url]

Duration: 2:01
Meteors, shooting stars, or falling stars are different names for the streaks of light in the night sky which are in reality the dying embers of tiny asteroids. Observing a meteor shower can be a WOW inspiring experience…
396-Jupiter [not-audio_url] [/not-audio_url]

Duration: 2:01
Jupiter has been observed by humans through out history, shaped our solar system, and made it possible for Earth to form.
395-House Sized Space Rocks [not-audio_url] [/not-audio_url]

Duration: 2:01
There are approximately 3.2 million Earth approaching asteroids similar in size to the Chelyabinsk impactor which injured nearly 1,500 people and damaged more than 7,000 buildings in February of 2013.