BBC Radio 4 joins the BBC World Service. 
What will happen when the sun dies?
Duration: 03:11
Solar Physicist Dr Helen Mason appears in BBC Four programme 'Seven Ages of Starlight' which tells the epic tale of the stars through seven ages. She explains to Libby Purves what the sun was like when it was first formed and what will happen when it dies.
Photo credit: NASA - Solar Dynamics Observatory/Atmospheric Imaging Assembly
Available since: Tue 30 Oct 2012
This clip is from
Midweek Fiona Fullerton, Cesar Millan, Jemima Dury, Dr Helen Mason
Libby Purves meets former actor Fiona Fullerton and dog whisperer Cesar Millan.
First broadcast: 24 Oct 2012
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