Where is Twitter headed now?

Elon Musk kicked off his ownership of Twitter with a load of firings and repealing the ban on former US president Donald Trump from the social network. Reports suggest Musk wants to become interim CEO. We speak to the founder of crime insight app WalkSafe+ which 'helps firms ensure workers get home safely'. Nasa spacecraft probes Mars deep impact.

Also in this episode:

• New PM Rishi Sunak slammed for skipping COP27 climate summit.
• London electric buses powered by world-first rapid charging.
• Naming of the shrew...Facebook post leads to new British mammal discovery.
• How relaxing and gentle piano sounds soothe nightmares
• Do the moonwalk...7mph robot rollerskates.

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