50 Things That Made the Modern Economy - M-Pesa

Transferring money by text message is far safer and more convenient than cash. M-Pesa, as it is known, first took off in Kenya. The idea was to make it easier for small businesses to repay micro-finance loans. But, almost immediately, M-Pesa exploded into something far bigger - there are now 100 times more M-Pesa kiosks than ATMs in Kenya – and with far-reaching consequences, in many developing economies. Tim Harford describes how money transferred this way is easy to trace, which is bad news for the corrupt. And good news for tax authorities. Producer: Ben Crighton Editors: Richard Knight and Richard Vadon (Photo: Mobile Phone and M-Pesa sign, Credit: AFP/Getty Images)

CrowdScience - Could Humanity be Wiped out Like the Dinosaurs?

Is there a killer asteroid with Earth’s name on it? The dinosaurs ruled for many millions of years before coming to their violent end. Will humanity prevail or are we doomed to succumb like the dinosaurs? It’s a question that will keep you up at night. No wonder our listeners Zarin and Pablo wanted to know more.

To find out, Anand Jaggtia heads to Denmark to see first-hand the evidence for a giant asteroid impact, written into the rocks at Stevns Klint. And we will hear from scientists at Nasa who are keeping a careful eye out for asteroids on collision course with Earth. Also, we discover that asteroids have a lot to answer for, maybe even our own existence.

Do you have a question we can turn into a programme? Email us at crowdscience@bbc.co.uk

The Gist - Bob Boilen: Tiny Desk, Big Effect

Bob Boilen, creator and host of NPR’s All Songs Considered and Tiny Desk Concerts, built his book around something he learned in his nearly 30 years of covering music: Artists are tired of talking about their own work, but ask them about what inspires them, and they’ll light up. Boilen’s book of interviews is the epically titled Your Song Changed My Life: From Jimmy Page to St. Vincent, Smokey Robinson to Hozier, Thirty-Five Beloved Artists on Their Journey and the Music That Inspired It.

For the Spiel, a defense of 2016. 

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