Sergei Petrovich Kapitsa (Russian: Серге́й Петро́вич Капи́ца; 14 February 1928 – 14 August 2012) was a Russian physicist and demographer. He was best known as host of the popular and long-running Russian scientific TV show, Evident, but Incredible. His father was the Nobel laureate (Soviet-era) physicist Pyotr Kapitsa, and his brother was the geographer and Antarctic explorer Andrey Kapitsa.