A year ago this month, Russia invaded Ukraine. The invasion has been called the biggest threat to European peace and security since the end of the Cold War. It's also caused ruptures in the world of science by threatening decades of carefully negotiated cooperation. In the Arctic, in space, and at mega-lamps like CERN, international scientists have collaborated with Russians on scientific research.
As we approach the anniversary of Russia’s invasion of Ukraine, Ian Sample talks to physicist Prof John Ellis, and Arctic governance expert Svein Vigeland Rottem, about how the world of science has had to adapt. Help support our independent journalism at
theguardian.com/sciencepod