The fatal beating of a 23-year-old man in Lyon has shocked France and ignited a fierce political row. The victim, Quentin Deranque, died in hospital after being attacked on February 12 near an event at Sciences Po Lyon attended by a left-wing politician. Prosecutors say he was assaulted during confrontations between rival activists and later succumbed to a traumatic brain injury, prompting a murder inquiry by French police.

The killing has intensified tensions between France's far right and far left in the run-up to key elections, with national figures calling for calm even as accusations fly about responsibility for the violence.

FRANCE 24's Mark Owen is joined by economist Renaud Foucart of Lancaster University to analyse the political and social fallout from this deeply troubling incident.

Produced by Charles Wente, Aline Bottin, Guillaume Gougeon and Ilayda Habip

Right now, 400 kilometres above the Earth's surface, orbiting at 17,500 miles per hour, or five miles per second, the new crew of the International Space Station are settling in. Among them is Sophie Adenot, the second female French astronaut. French former astronaut Michel Tognini shares his thoughts on this historic mission.

The team of four that make up Expedition 74 set off on Friday morning from Cape Canaveral. They are Jessica Meir and Jack Hathaway from the US; Russian cosmonaut Andrey Fedyaev; and Sophie Adenot, the second female astronaut from France after Claudie Haigneré three decades ago.

The ISS is considered the most expensive human-made engineering project in history, a total cost over its lifetime estimated at around $150 to 160 billion. Since 2000, for 25 years, it has been continuously occupied by humans living and working in a set of capsules in a football field-sized space, pushing the boundaries of science in space.

Sophie Adenot, a former helicopter pilot from Burgundy, says she's dreamed of this moment since she was tiny, despite the slim odds of doing it. She also says her family encouraged her from the start.

We hear from French former astronaut Michel Tognini.

Gavin Lee is pleased to welcome, live from Munich, Arseniy Yatsenyuk, Former Ukrainian Prime Minister, who served in the critical time in the recent history of Ukraine, 2014 to 2016.

There have been reports this week in the Financial Times suggesting that President Zelensky is planning to announce elections and a referendum, and that the announcement would likely come around the time of the fourth anniversary of the conflict in the next two weeks.

He's denied that, and this weekend at the Munich Security Conference is seen as another key moment to get a steer of the US position, and how the Trump administration is attempting manoeuvre in mediating an end to the conflict by the summer.