 Coming up after the news, the show that finds the science behind the news. After Ecuador's national power outage plunged 18 million citizens into darkness, we look at blackouts in other places. Are they more dangerous in the frozen Arctic? How do locals deal with them if the electric heater just won't switch on? And over in the South Pole, we talk to a scientist facing a different kind of blackout, the permanent darkness of midwinter.