Show notes
Hotel Mars Dr. Paul Kalas for Weds, Jan. Jn. 28, 2026, #4495Quick SummaryJohn Batchelor and I presented Professor Paul Kalas of the University of California at Berkeley, who discussed his groundbreaking observations of the Fomalhaut star system using the Hubble Space Telescope. Kalas explained how he discovered evidence of asteroid collisions creating massive dust clouds, which occur approximately every 100,000 years and last only 5-10 years. The discussion explored how planetary systems form through collisions between smaller objects, with Fomalhaut serving as a “time machine” to Earth’s early history when similar collisions shaped our own solar system. The conversation concluded with a broader discussion about the uniqueness of our solar system and the ongoing search for Earth-like planets around other stars, with David Livingston and Dr. Space highlighting their show’s focus on both space science and commercial space development.Detailed SummaryProfessor Paul Kalas from the University of California at Berkeley discussed his recent discovery using the Hubble Space Telescope of a star system called Fomalhut Dr. Pau, which is 25 light years away. He explained how they used techniques to cancel out the star’s bright light and revealed the presence of dust belts and a planet with a ring system, initially thought to be similar to Saturn. However, a new point of light appeared in 2023, challenging their previous understanding of the system, as planets are not supposed to suddenly appear.Dr. Kalas discussed the formation of Earth and the moon, explaining that a collision with a Mars-sized object created the moon and that Earth was subject to frequent impacts during the Great Bombardment. He mentioned ongoing research into a debris belt around a star 25 million light years away, suggesting a planet might be responsible for the belt’s structure. Our guest said his colleagues have imaged the star with the James Webb Space Telescope but have not yet detected any planets as large as Jupiter. He noted that smaller planets, like Uranus and Neptune, might exist but are beyond current detection limits.This was a one segment Hotel Mars program but after Dr. Kalas spoke, John talked with me about The Space Show, Hotel Mars and more. Continue listening for this short discussion.Special thanks to our sponsors:American Institute of Aeronautics and Astronautics, Helix Space in Luxembourg, Celestis Memorial Spaceflights, Astrox Corporation, Dr. Haym Benaroya of Rutgers University, The Space Settlement Progress Blog by John Jossy, The Atlantis Project, and Artless EntertainmentOur Toll Free Line for Live Broadcasts: 1-866-687-7223 (Not in service at this time)For real time program participation, email Dr. Space at: [email protected] for instructions and access.The Space Show is a non-profit 501C3 through its parent, One Giant Leap Foundation, Inc. To donate via Pay Pal, use:To donate with Zelle, use the email address: [email protected] you prefer donating with a check, please make the check payable to One Giant Leap Foundation and mail to:One Giant Leap Foundation, 11035 Lavender Hill Drive Ste. 160-306 Las Vegas, NV 89135Upcoming Programs:Broadcast 4498: Zoom Dr. Greg Autry | Tuesday 03 Feb 2026 700PM PTGuests: Dr. Greg AutryZoom: Dr. Autry on policy, economics, commercial and space missions/projectsBroadcast 4499 Hotel Mars TBD | Wednesday 04 Feb 2026 930AM PTGuests: John Batchelor, Dr. David LivingstonHotel Mars TBDBroadcast 4500: Zoom Overview Energy with Dr. Paul Jaffe | Friday 06 Feb 2026 930AM PTGuests: Dr. Paul JaffeZoom: Dr. Jaffe with others talks about Overview EnergyBroadcast 4501 Zoom Dr. Scott Solomon | Sunday 08 Feb 2026 1200PM PTGuests: Dr. Scott SolomonZoom: Settlement, humans in space, reproduction and more Get full access to The Space Show-One Giant Leap Foundation at doctorspace.substack.com/subscribe