Solar Storms: The Threat to Planet Earth

Scientists are expecting a fit of violent activity on the sun which will propel billions of tonnes of superheated gas and pulses of energy towards our planet. They have the power to close down our modern technological civilization.

Horizon meets the space weathermen who are trying to predict what's coming our way, and organistions like the National Grid which are preparing for the impending solar storms.

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S2012E04 - Out of Control?