Prince Archie is 6 years old! No, we can't believe he's getting so big — and neither can his mum Meghan Markle, who posted the most adorable photo of the little boy on Instagram to celebrate his birthday on 6 May.

Sharing a photograph of Archie silhouetted against a fiery sunset, Meghan captioned the image, "Our son. Our sun." At such a critical moment in US history, we need reporters on the ground. Your donation allows us to keep sending journalists to speak to both sides of the story.

Meghan Markle cannot believe her little boy, Prince Archie, is already six!To ring in her baby boy's 6th birthday, the Duchess of Sussex released his new photo on her official Instagram account, along with a heartfelt message.