Black Hole Stars and Solar Instabilities

Walkabout the Galaxy by Joshua Colwell

Aug 23, 202635:56Science & Medicine

What do you call a very-but-not-so-supermassive black hole completely encased in a warm dense cloud of hydrogen? A hot mess? How about "black hole star", a new category of crazy astronomical object that can explain some...

Related Episodes

Continue listening to more episodes from Walkabout the Galaxy.

The Oldest Radio Burst and Chariklo's Rapidly Changing Rings

Oct 17, 2026 - 38:06

A new distance record has been set with the help of the JWST, spotting the distant (and therefore ancient...

Backwards Exoplanet and Shrinking Mercury

Sep 26, 2026 - 40:51

An exoplanet has been discovered orbiting its star in the opposite direction of its star's rotation, a ph...

Have We Detected Dark Matter?

Sep 15, 2026 - 40:03

An intriguing detection from a dark matter experiment may be the first direct detection of a dark matter...

Mapping a Galaxy's Dark Matter and a Game-Changing Space Telescope

Aug 30, 2026 - 39:07

The Nancy Grace Roman Space Telescope sees 100 times more sky than the Hubble Space Telescope and has the...

Dyson Spheres and Interstellar Colonization

Aug 16, 2026 - 39:04

Strange and Top are at it again with a deep dive on the physics, psychology, and philosophy of the big qu...

Black Holes Come Back for Seconds and a Rocky Exoplanet with an Atmosphere

Aug 11, 2026 - 36:36

Supermassive have such voracious appetites that they create an energetic mess when eating which has a ten...

Distant Quasars and Earth's Quasi-Moon

Jul 9, 2026 - 43:20

Quasars, the energetic engines driven by the voracious appetite of supermassive black holes, have been ob...

I See a Big Moon Rising and a Bright Radio Sky

Jul 1, 2026 - 42:22

The astroquarks examine the oft-asked question of why the Moon sometimes looks huge and other times, not...