3E-3-Finding Earth Approaching Objects

3E-3-Finding Earth Approaching Objects

Author: Albert D. Grauer December 21, 2018 Duration: 2:01
Using 2 telescopes near Tucson Arizona, the NASA funded, Catalina Sky Survey searches for Earth Approaching Objects. The method is to take 4 images of the same part of the sky spaced out over 45 minutes. These images are searched with computer programs to identify moving objects.

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
614-Rare Atira [not-audio_url] [/not-audio_url]

Duration: 2:01
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 of the approximately 24,000 known near Earth asteroids fall into this categ…
102E-114-Roses First Asteroid [not-audio_url] [/not-audio_url]

Duration: 2:01
Rose Matheny's third solo night of asteroid hunting, using the University of Arizona Schmidt telescope, on Mt. Bigelow, was one of the longest of the year. She had prepared for this night over the past several months by…
613-Climate Change and Telescopes [not-audio_url] [/not-audio_url]

Duration: 2:01
Recently, in the journal Nature Astronomy, a team of astronomers led by Dr. Faustine Cantalloube of the Max-Planck Institute for Astronomy released data from their study of the effects of climate change on the future of…
101E-113-A Dwarf Water Planet In Our Solar System [not-audio_url] [/not-audio_url]

Duration: 2:01
The dwarf planet Ceres may be a place in our solar system where life could have developed. At 590 miles in diameter it is the largest asteroid and only dwarf planet orbiting the Sun between Mars and Jupiter. Ceres appear…
612-Day and Night [not-audio_url] [/not-audio_url]

Duration: 2:01
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 all humans. Most people could identify a few constellations and had experi…
100E-112-A Banner Year For Asteroid Hunters [not-audio_url] [/not-audio_url]

Duration: 2:01
The goal of the NASA Near Earth Object Program is to discover any objects on a collision course with planet Earth. We now know of more than 90% of objects whose impact could cause global climate change. None of them is a…
99E-111-Green Meteors [not-audio_url] [/not-audio_url]

Duration: 2:01
Recently, my wife and I saw a beautiful, bright, green, meteor fireball streaking across the western New Mexico night sky. Such sightings by some UFO enthusiasts , have been advanced as the best observations of alien spa…
611-Aurora Mysteries [not-audio_url] [/not-audio_url]

Duration: 2:01
Auroral displays have been observed and reported on throughout human history. Data from NASA's 5 Themis (Themm us) satellites analyzed by powerful supercomputers is giving us new insight into how our magnetic shield prot…
610-Atmospheric Gravity Waves [not-audio_url] [/not-audio_url]

Duration: 2:01
Atmospheric gravity waves can be powerful. In September of 2018 two glider pilots surfed an atmospheric gravity wave created by high speed polar winds as they encounter the Andes mountains. Amazingly their unpowered airc…
98E-110-Asteroids Accessible By Human Space Flights [not-audio_url] [/not-audio_url]

Duration: 2:01
So far humans have discovered about 100 asteroids which could be visited by astronauts with current rocket capability. My group, the NASA funded Catalina Sky Survey at the University of Arizona has discovered 65% of thes…