The End of Night

Kat and Chris are turning the lights down low in search of darkness. 80% of Europeans and Northern Americans now can't see the Milky Way. But does this extra light pollution matter? It doesn't harm anyone, or does it? Plus in the news, with the US presidential elections fast approaching, we see what we can learn from animals when it comes to picking a leader. And, do you really lose most of your heat through your head? Like this podcast? Please help us by supporting the Naked Scientists