TV show host known for being on various shows throughout the 1970s and through the 2000s including Time X and X-Rays. These shows involve deep science and cosmology and have been co-hosted with his twin brother Grichka.
He began his career hosting the show Time X in 1979. The show ended in 1989. He received a Ph.D.in theoretical physics from the University of Burgundy in 2002.
In the 2000s, he appeared to have undergone plastic surgery that pulls up their cheekbones and chins. The two brothers were involved in the Bogdanov Affair which saw controversy surrounding the publication of a series of articles that were published about theoretical physics. He likes to play guitar and banjo.
He was born in Saint-Lary, Gers, France. His parents are Dolores Franzyska Kolowrat-Krakowská and painter Yuri Mikhaïlovitch Osten-Sacken-Bogdanoff. He was raised by his maternal grandmother, Countess Bertha Kolowrat-Krakowská, in her castle in southern France. He is 40 minutes older than his brother. He has dated a biology student Julie Jardon. He has previously been married to Amélie de Bourbon Parme. He has six children.
He appeared in the movie Chassé-croisé in 1982 with actress Arielle Dombasle.