Hello. As the White House tells the BBC plans for talks with Iran remain "fluid", North America correspondent Anthony Zurcher shares his analysis of the latest developments. We also take an in-depth look at the Artemis II mission that will send four astronauts around the Moon, and follow Agatha Christie's footsteps across the world.

• Iranian civilians: Little information is getting out of Iran about the war's mounting civilian toll. The BBC has identified some of the victims.

• Market reaction: Energy markets have been volatile following diplomatic developments. Brent crude oil is now back above $100 (£75) a barrel.

• Around the world: China has dialled back on planned fuel price hikes while Slovenia became the first EU country to introduce fuel rationing.

• Arson attack: A group with possible links to the Iranian state is being investigated after four Jewish charity ambulances were set alight.

• Royal Mail: Postal workers across the UK say they are told to move or hide mail from senior bosses so it looks like delivery targets are being met.

• Organ transplants: The UK used to be world-leading in heart and lung transplants. Now it's lagging behind most of Europe. Here's why.