Vadym lives in Saltivka, a residential area in northeast Kharkiv. The windows of his apartment on the sixth floor face north. "For a long time, I could not understand what is that light shining on the horizon," Vadym begins his story.“Sometimes I was seeing bright shots of light rising up and then disappearing. I was thinking that perhaps it was our air defense working. I did not immediately realise what it was and how far it was from where I lived. Belgorod in Russia is 60 kilometres (~40 miles) from my house”, Vadym says.