The moving tribute sparked an outpouring of heartfelt messages from fans, who shared their grief, gratitude, and memories.
“He is so missed.😢 Thank you for everything that you do to carry on his legacy,” one wrote.
“Beautiful words Clare. His endless curiosity was incomparable. Sending love to you and the kids.”
“What a truly lovely man and a heartfelt post on the anniversary. I will light a candle today and hold you all in my thoughts,” commented another.
The anniversary comes shortly after Dr Bailey publicly recounted the tragic circumstances of her husband’s final hours, offering new insights into the moments leading up to his death on the Greek island of Symi last June.
The couple had arrived on June 4, 2024 for what was meant to be a relaxing week-long getaway with friends. Just a few hours into their stay, Dr Mosley went for a walk from which he would not return.
“We’d only been there for half a day before it happened,” she told MailOnline.
She described how the two had been spending a quiet afternoon on the beach, enjoying the sea and a coffee, before her husband decided to go for a walk.
“Typically, Michael got bored,” she explained.
“He wasn’t enjoying his book and he doesn’t really like lying on beaches, so he said: ‘I’m going exploring. I’m off for a walk.’ He agreed to meet us back at our friends’ villa.
“I gave him my litre bottle of water and in his rather eccentric way, he had an umbrella to shield him from the sun. It was 1.30pm and he was given instructions on where to walk.
“He set off at a good pace, his rucksack on his back, up a steep hill. He hadn’t brought his phone because he didn’t want to risk it getting wet on the boat.”
When he failed to return later that day, concern quickly grew.
“Feeling things weren’t right, we went to the police station and reported him missing. The police said: ‘We can’t do anything about it until he’s been gone for 48 hours.’ I said: ‘What, in this heat?’ It was 40 degrees, the hottest day for decades.”
Despite the initial lack of official action, she persuaded authorities to begin search and rescue efforts — and joined the search herself.
“Then it got dark. It became devastatingly obvious something had gone terribly wrong,” she said.
Four days later, her worst fears were confirmed when Dr Mosley’s body was found in a rocky area by search teams.
Following an initial post-mortem examination, it was confirmed that there were no injuries on his body, Greek police spokeswoman Konstantia Dimoglidou told the BBC.
The position his body was found in also indicated that he likely died of natural causes.
Dr Mosley was well known for his work in public health and science communication, bringing medical advice to a wide audience through television, radio, and books. His death prompted tributes from colleagues and followers around the world.