Beneath the surface of the Southern Ocean, vast volumes of cold, dense water plunge off the Antarctic continental shelf, cascading down underwater cliffs to the ocean floor thousands of meters below.

Ipsos analysis of regulations in seven countries found Britain had fewer restrictions than Italy, Spain, Germany, Belgium and the Netherlands. In Spain and the Netherlands, marketing can only take ...

Meanwhile, Vladimir Putin has suggested direct peace talks with Ukraine for the first time since the beginning of the war. Submit a question for defence analyst Michael Clarke below.