A new exhibition called Freedom in the Equation has opened at the Harvard Science Centre in Cambridge, Massachusetts.The exhibition sheds light on the contributions of Ukrainian scientists and highlights Ukraine's lost scientific potential due to Russia's aggression.The exhibition features the stories of 10 scientists, including Vasyl Kladko and Lev Shubnikov, who made significant contributions in their fields.The exhibition runs until 10 March as part of the Science at Risk project.