Shooting stars from space for 2020 Olympics - BBC Click
When the 2020 Olympics gets underway in Tokyo, Project Sky Canvas hopes to paint the sky above with shooting stars.
The plan is to put a micro-satellite in orbit that will fire tiny particles into the atmosphere.
As they fall to Earth they will burn up and become on-demand shooting stars that can be directed to any chosen location and be seen within a radius of up to 200km (124 miles).
BBC Click's Spencer Kelly went to find out more.
Top drone teams from around the world go head to head in the UAV Medical Express Challenge down under in the Australian Outback. Their mission: create new autonomous drone technology that will enable stranded citizens to transport their blood samples to a doctor far from home. BBC Click's Spencer Kelly and Nick Kwek report.
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