The Milky Way's Mysterious Glow with Prof. Geraint Lewis (459)

A mysterious glow from the centre of the Milky Way has scientists intrigued. Astrophysicist Geraint Lewis explains how this gamma-ray excess, first detected in 2009, could be evidence of dark matter particles interacting deep in our galaxy. With dark matter believed to make up a vast, invisible halo that holds galaxies together, uncovering the source of this glow may bring us closer to understanding what the universe is really made of.

www.geraintflewis.com/
Linkedin: geraint-lewis-4a499b1

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• The Milky Way’s Mysterious Glow with Prof. Geraint Lewis (459)

The Milky Way’s Mysterious Glow with Prof. Geraint Lewis (459)

Jan 31, 2026

A mysterious glow from the centre of the Milky Way has
scientists intrigued. Astrophysicist Geraint Lewis explains how
this gamma-ray excess, first detected in 2009, could be evidence of
dark matter particles interacting deep in our galaxy. With dark
matter believed to make up a vast, invisible halo that holds
galaxies together, uncovering the source of this glow may bring us
closer to understanding what the universe is really made of.

www.geraintflewis.com/

Linkedin: geraint-lewis-4a499b1

About the Podcast

Dr Karl’s a curious optimist – a great combination for a science lover. Join him and his guests for weird facts, amazing conversation and remember, it’s never too late for a happy childhood.
https://drkarl.com/

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