A chain of human errors led to violate safety procedures in an imperfect reactor and triggered the worst nuclear accident ever recorded, occurred at Chernobyl 40 years ago; Today the area, off-limits to humans, is forested and populated with wild species

Ukrainian drone attacks targeted military and energy infrastructure and oil depots on the Baltic coast; the attack came on the opening day of St Petersburg Economic Forum, a three-day event that also welcomed US representatives after years

As war enters its fifth year, Kyiv has been seeking new ways to avoid risking heavy losses of soldiers and the use of unmanned ground vehicles has increased; armed with bombs, guns or rockets they have forced Russian troops to surrender their position

Recent UN report highlighted the ongoing protection risks for older individuals in frontline regions and reported on the massive projected reconstruction costs of $588 billion for Ukraine

In the four years since the beginning of the war a number of war-themed murals have appeared on buildings and walls throughout Kyiv, a phenomenon that has been dubbed 'Martial art'