December 7, 2015. Russian President Vladimir Putin, left, and Kurchatov Institute director Mikhail Kovalchuk meet at the Kremlin.

07.12.2015#2753200

December 7, 2015. Russian President Vladimir Putin, left, and Kurchatov Institute director Mikhail Kovalchuk meet at the Kremlin.

07.12.2015#2753199

December 7, 2015. Russian President Vladimir Putin, right, and Kurchatov Institute director Mikhail Kovalchuk meet at the Kremlin.

07.12.2015#2753198

December 7, 2015. Kurchatov Institute director Mikhail Kovalchuk during a Kremlin meeting with Russian President Vladimir Putin.

07.12.2015#2753197

December 7, 2015. Russian President Vladimir Putin, right, and Kurchatov Institute director Mikhail Kovalchuk meet at the Kremlin.

07.12.2015#2753196

December 7, 2015. Russian President Vladimir Putin during a Kremlin meeting with Kurchatov Institute director Mikhail Kovalchuk.

07.12.2015#2753195