Why men kneel to propose

Engineers at Columbia University's Creative Machines Lab have developed Emo – a robot capable of mimicking human facial expressions – to “enhance the interactions between humans and robots.” Emma Jehle has more.

The first fitness summit and Awards event in Nigeria, Wemove, took place at Lekki Phase I, Lagos a few weeks back. Powered by the Institute Of Registered Exercise Professionals And Purefitness Africa, the event brought together all fitness lovers and professionals, from across the country, in a bid to celebrate fitness and wellness in Nigeria. GuardianTV was at the event to report all the conversations on core issues faced by the fitness industry in Nigeria.

Recent droughts in Colombia and Ecuador have severely hampered energy supplied by hydropower. Can the cheap, low-carbon renewable still thrive in an increasingly hot and dry world?

Buckingham Palace confirmed that the UK monarch will restart his public-facing duties, nearly three months after being diagnosed with cancer.

Find these stories and much more when you grab a copy of The Guardian on Saturday.

The government of the Democratic Republic of Congo is accusing Apple of using "illegally exploited" minerals extracted from the country's embattled east in its products, lawyers representing the African country said Thursday.