863-Space Elevator

863-Space Elevator

Author: Albert D. Grauer August 22, 2025 Duration: 2:01
In a recent study Dr. Lynnane George and her co-authors investigate Space Elevator technology to remove materials from Ceres and deliver them to orbital depots around the solar system.  The tiny gravity of Ceres, nano-fiber technology, and different water propulsion systems are utilized by Dr. George and her team to construct theoretically possible systems which would extract raw materials from Ceres and deliver them to low Earth orbit and other locations within the solar system.  These researchers estimate such a transport system could reduce fuel costs by up to 60% compared to transport from the Earth’s surface. 

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
223E-235-Fragment [not-audio_url] [/not-audio_url]

Duration: 2:01
Millions of years ago two large asteroids collided in the asteroid belt. Pieces were sent flying in all directions. A few of them were put into orbits which rise high above and below the plane of the solar system as they…
733-Lunar Space Rock(521) [not-audio_url] [/not-audio_url]

Duration: 2:01
Recently, my Catalina Sky Survey teammate Hannes Groller discovered an Earth approaching asteroid which has a speed consistent with it being ejected from the Moon by the impact of an asteroid or comet long ago. 69 hours…
222E-234-Salty and Cold [not-audio_url] [/not-audio_url]

Duration: 2:01
There is increasing evidence that Jupiter's moon Europa, Saturn's moon Enceladus, and other bodies in our solar system have oceans of salty liquid water in contact with warm rock layers. We know that on Earth life abound…
732-Comet Lemmon(520) [not-audio_url] [/not-audio_url]

Duration: 2:01
Comets Travel Between Stars. An interstellar traveler visits our neighborhood on its tour of the Milky Way. Comet Lemmon will continue on a hyperbolic path into deep space. In 2043 it will be further than the average dis…
221E-233-Tiny Visitor [not-audio_url] [/not-audio_url]

Duration: 2:01
Asteroids are part of our environment.An SUV sized space rock has spent eons traveling through the silent vacuum of space. In the past 50 years, without humans being aware of its existence, it has made 29 close approache…
731-Greg's Comet(519) [not-audio_url] [/not-audio_url]

Duration: 2:01
The discovery of a Jupiter family comet whose fate is to become a garden variety main belt asteroid.
220E-232-Dangerous Aten [not-audio_url] [/not-audio_url]

Duration: 2:01
Aten asteroids pose a threat as well as an economic opportunity for humans.
730-Busy Night(518) [not-audio_url] [/not-audio_url]

Duration: 2:01
On Halloween night while observing with the Catalina Sky Survey's 60 inch telescope on Mt. Lemmon, Arizona I discovered 21 space rocks streaking through the night sky. The most interesting one could be the destination of…
219E-231-Hot Hand [not-audio_url] [/not-audio_url]

Duration: 2:01
Every year asteroid hunters discover about a hundred objects which are larger than 450 feet in diameter and come closer than 20 times the Moon's distance from us. We call these potentially hazardous asteroids. In 2015 my…
729-Close Again(517) [not-audio_url] [/not-audio_url]

Duration: 2:01
As asteroid hunters equipment and skills continue to improve we will be able to find and track some of these tiny impactors and perhaps be able to suggest where to find pieces of one of them on the ground.