There have been more than 200 reports of a mysterious “fireball” crossing the night sky over Scotland and Northern Ireland. One of the biggest moments in cryptocurrency history has finally come to pass - ethereum blockchain has finished its much-anticipated “merge” to a more eco-friendly platform, by killing off the energy-hungry ‘mining’ process. I can’t get no sleep...why LED lighting’s ruining bedtime. Puffling season: We speak to Kyana Sue Powers as Icelanders try to save baby puffins after they fall into Heimaeyn in the Westmann Islands, off Iceland’s south coast.

Plus:

-Linguistic computer scans reveals ‘plays Shakespeare co-authored’

-Patagonia, outdoorwear-maker beloved by tech bros, transfers to climate trust

-Can 3D metric mask really improve diagnosis while safeguarding patient data?

-A droid, a drone and a human walk into a bar...Robot ‘laughs at jokes’

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