Igor Novikov is a prominent Russian theoretical physicist known for his work in cosmology and general relativity. Born on April 29, 1935, he has made significant contributions to the understanding of black holes and the nature of time. Novikov is particularly recognized for the Novikov self-consistency principle, which addresses the paradoxes associated with time travel. In addition to his research, Novikov has been involved in various scientific organizations and has published numerous papers. He has also contributed to the popularization of science in Russia and has been a key figure in discussions about the implications of theoretical physics on our understanding of the universe.