Buena Vista Social Club, the musicians who wrote the defining soundtrack of 1940s Cuba, are still going strong. They’re on a world tour – including London – where they’ve been speaking to Matt Frei.

The son of a government minister has been named as one of the masked gunmen who killed almost 150 people at Garissa University in Kenya last week. Churches across the country have hired armed guards to protect worshippers at Easter services.

The Large Hadron Collider has been running at half power since it hummed into life in 2008. Next on the mystery-solving list: dark matter.

Read more: http://blogs.channel4.com/geoff-white-on-technology/large-hadron-collider-rebooted-seach-dark-matter/1685