How does radiation escape black holes?

How do we get bright images of planets and why do distant lights seem to blink?
30 September 2016
Presented by Chris Smith


A black hole concept drawing by NASA.


How do we get bright images of planets, why do distant lights appear to blink, how does radiation escape black holes, what could cause a loss of smell and why does our stomach grumble when it's hungry? Plus, news of the Rosetta Mission's final hours.


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