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World's first supersonic unmanned combat drone reaches Mach 2.1 (www.dailymail.co.uk)

Singapore-based Kelley Aerospace has officially launched its Arrow, which is the world’s first supersonic unmanned combat aerial vehicle capable of reaching Mach 2.1.

The history and future of jetpacks: Mankind's obsession with personal flight in photos (www.pocket-lint.com)

Lime says it will spend $50 million on a huge e-bike expansion (www.theverge.com)