A Whisper of a Hint of Primordial Black Holes plus Earth BLOBs

Walkabout the Galaxy by Joshua Colwell

Mar 18, 202640:48Science & Medicine

Gravitational Wave observatory LIGO has seen a signature that looks like the merger of primordial (pre-stellar, big bang (not big band!) era) black holes. If confirmed with future observations, this would tell us a lot a...

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...

Black Hole Stars and Solar Instabilities

Aug 23, 2026 - 35:56

What do you call a very-but-not-so-supermassive black hole completely encased in a warm dense cloud of hy...

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...