Four Kenyan cyclists travel 3,500km from Kenya to Saudi Arabia for the annual Hajj pilgrimage.
Ethiopia says millions took part in a nationwide scheme to tackle deforestation - how did it work?
Despite mine closures, human rights abuses and price crashes, cobalt may still have an electrifying future.
The Italian deputy PM called on the film star to take the 160 migrants to Hollywood on a private jet.
At least 57 people died after an explosion and the death toll could rise - police.
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