352E-379-Flying Mud Balls

352E-379-Flying Mud Balls

Author: Albert D. Grauer September 2, 2025 Duration: 2:01
75% of asteroid hunter's discoveries are called C type asteroids. They are dark, have a high abundance of carbon, consist of clay and silicate rocks, and may have a composition which is up to 22% water. Recently Dr. Phillip A. Bland of Curtin University in Australia and Dr. Bryan Travis of the Planetary Science Institute in Tucson, Arizona published an article in the on line journal Science Advances describing their numerical simulations of the evolution of the progenitors of the C type asteroids. These researchers find that these common asteroids are likely to have started out as giant convecting mud balls which could still exist at the center of large asteroids like Ceres. The C type asteroids are particularly significant in that they are likely to have been one of the ingredients which came together under gravity to form Mercury, Venus, Earth, and Mars. Their impacts upon a young Earth are likely to be the source of the water in our oceans. Of more immediate interest is that the type C asteroids could be a handy source of water and raw materials for space colonists either as they are currently flying through space or found buried in impact craters on the Moon.

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: 100

Travelers In The Night