Drones are being used to replant degraded areas of forest in Brazil – how successful have they been so far?
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A rare deep-sea squid with ‘headlights’ was filmed by scientists at a depth of more than one kilometre.
What it’s like to be a Palestinian today, with your whole life occupied.
Boeing, founded in 1916, has experienced good times and bad during its more than 100 years in the air.