The Space Show Presents Hotel Mars with Dr. Pieter van Dokkum of Yale regarding "runaway blackholes."

March 17
19 mins

Episode Description

John Batchelor and I welcomed Dr. Peter van Dokkum of Yale to define and discuss runaway black holes which are supermassive objects expelled from galaxies after massive collisions. These objects move at 1,000 kilometers per second, escaping their host galaxies to roam through intergalactic space.

Astronomers first detected a runaway black hole via a shock front and a wake of 100 million newborn stars. This stellar trail traces the black hole’s path as it travels through intergalactic gas per the description used by John Batchelor for this Hotel Mars program.

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 Entertainment

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Upcoming Programs:

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Broadcast 4518: Zoom: John Hunt | Tuesday 17 Mar 2026 700PM PT

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Broadcast 4519: Hotel mars with Rahil Makadia | Wednesday 18 Mar 2026 930AM PT

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Hotel Mars: Updates on the DART Mission. Don’t miss this segment!

Friday, March 20: No program but check Upcoming Show Menu for possible last minute changes | Friday 20 Mar 2026 930AM PT

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Friday, March 20: No program but check Upcoming Show Menu for possible last minute changes

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Guests: Dr. David Livingston

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Space Show weekly schedule pending. See Upcoming Show Menu on the right side of our home page, www.thespaceshow.com. The weekly newsletter will be posted on Substack when completed.

Hotel Mars, John Batchelor, Dr. David Livingston, Dr. Pieter van Dokkum, runaway black holes, supermassive objects, ejected from galaxies, travel at very high speeds and more



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