Questions continue to grow about air safety in the US capital. We hear from Graham Braithwaite, professor of safety and accident investigation, at Cranfield University.

Crispr designed gene cutting therapy for some patients with severe sickle cell disease, approved for NHS use.

The ‘godfather of artificial intelligence’ issues stark warning that the technology could one day replace humans.

Also in this episode:

• Dr Ashley King, from the Department of Earth Sciences at London’s Natural History Museum, on their analysis of the remarkable minerals found in the famous Nasa asteroid sample, Bennu, which they say unlocks secrets to “the ​starting ​point ​of ​our ​solar ​system”.
• Acas issues new advice on dealing with neurodiversity at work. 
• A Complete Unknown: Bob Dylan gets a 150% boost in music streaming.

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