The trial in Oakland, California has helped lift the veil on the AI sector – and the huge egos of the men at the heart of it.

Shiona McCallum tours Blenheim Palace, exploring the tech aiding its restoration.

Harriet Bradshaw finds out how AI is being used to help solve an art history mystery.

Andrew Rogers explores new tech trials helping people stay underwater for longer.

Adrienne Murray explores how new 3D imaging is supporting heart procedures.

How to say goodbye and pay tribute to a loved one – with a hologram.

Workers train AI to identify everyday objects by labelling items in photos and videos.

A sleep apnoea wearable. Plus, tech to free up hospital beds and a breast health app.

Crumbling roads and other hazards – can AI make our streets safer?

A cyber security expert says deleting chat history could lead to a lack of accountability if things go wrong.