The search for a new First Minister of Scotland has started - the third in three years - after Humza Yousaf announced his resignation yesterday in an emotional speech.

Yousaf says he "underestimated" the hurt caused by his decision to scrap the SNP's power-sharing agreement with the Scottish Greens - a move that prompted two no-confidence votes.

The polls suggest there is something more fundamental going on - a belief that ministers here in Edinburgh are simply not delivering the basics, like a health service that works and schools with high standards, even though it is they and not ministers in Westminster, who are in charge of those policies.

Today's Nick Robinson spends the day in Holyrood reflecting on the fall out of another emotional resignation by another Scottish first minister.

Listen to Today on BBC Radio 4 and BBC Sounds: 6-9am weekdays and 7-9am on Saturdays.

The Today Debate is about taking a subject and pulling it apart with more time than we have in the morning.

Amid a significant backlog in crown courts in England and Wales and related problems in the system in Scotland and Northern Ireland, Today presenter Mishal Husain asks if justice delayed is justice denied?

Joining Mishal on the Today debate panel are Claire Waxman, the Independent Victims' Commissioner for London; Charlie Taylor; His Majesty’s Chief Inspector of Prisons for England and Wales; Joanna Hardy-Susskind, a barrister at Red Lion Chambers; Lord Falconer, Labour Peer and former Lord Chancellor and Secretary of State for Justice and Sir Max Hill, who was the director of Public Prosecutions for England and Wales until October last year.

When Theresa May was diagnosed with type 1 in her 50s, she told the consultant: "I'm too old. I can't be”. Lady May says she would also eat Jelly Babies when her blood sugar dropped during meetings.

The former Prime Minister has now chaired a parliamentary inquiry into the life-threatening consequences of having both type 1 diabetes and an eating disorder.

She speaks to Today's Justin Webb why a joined-up approach by the NHS is needed so that healthcare professionals are aware of the 'conflicting pressures' on people with type 1 and an eating disorder. She also discusses her experience while in government of managing her blood sugar levels.

The last of our Christmas guest editors is the CEO of the global biopharma company GSK, Dame Emma Walmsley.

She wanted her programme to look to the year ahead with optimism. In these highlights from her programme hear Dame Emma in conversation with the Archbishop of Canterbury Justin Welby, who urges politicians not to treat their opponents as enemies but as fellow human beings.

Dame Emma also speaks to the Health Minister for Singapore; visits Kew Gardens and she asks former guest editor and Nobel Laureate Sir Paul Nurse to discuss with a group of students, the scientific and technological advances they are most excited for in 2024.

Simon Jack interviews Dame Emma to end her programme and she chooses a special piece of music.

Professor Jason Arday is our latest Christmas guest editor.

This year he was appointed as one of Cambridge’s youngest ever professors. A significant accolade by any measure but even more so when you consider that Professor Arday was diagnosed with autism and global developmental delay aged just three and didn't learn to speak until he was eleven or read and write until he was eighteen.

He uses his programme to look at improving adult literacy and he speaks to the head of Universal Music UK about championing neurodiversity in the workplace.

Professor Arday also indulges his passion for 90s music with a discussion including Blur drummer Dave Rowntree and as a fan of a sharp suit, he champions the tailoring industry.

Andrew Malkinson is Today's latest Christmas guest editor. He spent 17 years in prison for a crime he didn't commit before being cleared in July.

He uses his programme to look at justice and how one can cope with being locked up unjustly. He speaks to John McCarthy, who was held hostage for more than five years in the 1980s.

While in prison, the world of astronomy and space offered Andrew a sense of release and sanctuary from the immediate confines of his daily experience and a way to expand his world. So as part of his guest edit, he visits Jodrell Bank observatory.

And he tells Today's Justin Webb about the months since his conviction was overturned and how he still feels anger.

The singer and UN environment ambassador Ellie Goulding is the latest Today programme Christmas guest editor.

Ellie uses her programme to explore her twin passions of music and nature, including looking at rewilding projects

She tells Today's Martha Kearney that nature has helped her through difficult times in her life, including postnatal depression.

Ellie interviews fellow musicians Brian Eno and Chris Martin about the music industry's environmental impact.

And she goes back to her sixth form college in Hereford and answers students questions, including about whether the music industry has changed for the better since the Me Too movement began.

James May, The Grand Tour and former Top Gear presenter, is Today’s latest Christmas guest editor.

He looks at the future of driverless cars and why a culture change may be needed to end conflict between cyclists and motorists.

James believes hobbies are good for people’s wellbeing so the Today team assembled a get together with hobby-mad listeners, including comedian Al Murray.

He also looks at whether coffee culture is eroding the place of tea and gets a poetry lesson from Succession star Dame Harriet Walter.

Here James shares highlights from his programme.

The writer Hanif Kureishi - who is our second Christmas guest editor this year - had a life changing accident which paralysed him on Boxing Day 2022.

He uses his programme to explore his adjustment to becoming disabled, including its impact on his family and his friendships.

Hanif first enjoyed professional success as a writer 1985 with My Beautiful Laundrette, which was Oscar nominated, and he later wrote the novel the Buddha of Suburbia - which became a BBC series - and My Son The Fanatic.

In his programme, he speaks about how he has developed with his son Carlo a new way of producing and publishing his work. He also has a long conversation with Today presenter Mishal Husain just before he returns home from hospital.

Dr Nicola Fox, Associate Administrator for the Science Mission Directorate NASA is the first of our Christmas guest editors this year.

Her programme looks ahead to the launch of the Peregrine Lunar Lander next year which will start the ground work for sending a crewed mission back to the Moon.

Dr Fox, who revealed she was a fan of Duran Duran on her recent Desert Island Discs, talks to band member Nick Rhodes about the influence of space on music. She talks to her counterpart at the European Space Agency, Carole Mundell, about her path into a top space job and she confronts the writers of the last Bond film.

Dr Fox also speaks to Today Presenter Nick Robinson about why her father's interest in space inspired her and why she cries every time a space mission launches.

The daughter of Yocheved Lifschitz, one of the hostages freed last night, has visited her mother in hospital in Israel and has told Today she "seems OK".

In an interview with Today presenter Mishal Husain, Sharone Lifschitz said: "The nurses are just having a chat, they say she is very sharp and is very keen to share the information, pass on the information to families of other hostages that she was with."

Yocheved Lifschitz was held for 16 days after being abducted from her home in a kibbutz in southern Israel amid scenes of death and destruction.

Today's Nick Robinson also spoke to BBC Correspondent in Gaza Rushdi Abualouf.

And Noam Sagi joined Nick and Mishal in the studio. His mother, Ada Sagi, was taken hostage in the kibbutz of Nir Oz, near Israel's border with Gaza.