Broadcast on 17th Feb. 2011 on 103.2 Dublin City FM
IMAGE: Solar Flare captured on the Sun by NASA's Solar Dynamics Observatory on 8th Sept. 2010 [Credit: NASA]
What's it all about? Solar flares explained by Peter Gallagher, astrophysicist based at TCD.
The question is? We see only four per cent of the 'stuff' the Universe is made up of. Where is the invisible 'dark matter' and what is it doing? We ask Paul Callanan, physicist at UCC.
Writer's room. We talk to Christian Gerondeau, author of 'Climate: The Great Delusion'
To contact the show, email: firstname.lastname@example.org