Listen to this episode
Prof. Peter Gallagher, Director of Dunsink Observatory & Head of Astrophysics at the Dublin Institute for Advanced Studies, joined Sean on the show...

Download, listen and subscribe on the Newstalk App.

You can also listen to Newstalk live on newstalk.com or on Alexa, by adding the Newstalk skill and asking: 'Alexa, play Newstalk'.

Read more about
Planets
Space
Stars
Sun
Related Episodes
O'SHEA, MOLUMBY, OGBENE & COLLINS: 'We're going to war' for Stephen Kenny | Playing against France is a dream
OTB Football
00:33:40
FOOTBALL SATURDAY – Mbappe awaits, putting faith in the youth and coming out of retirement
OTB Football
01:39:06
The Saturday Panel - Colm Keys, Taggy Fogarty and Colin Kelly on a massive weekend of GAA action
OTB GAA
00:51:40
Irish women's rugby on the up, frightening France and the boat race | Saturday's Newsround
OTB Newsround
00:23:44