Dmitry Petelin will be the commander of the Soyuz MS, while Konstantin Borisov and Deniz Burnham will serve as the ship's flight engineers MOSCOW, April 29. /TASS/. NASA astronaut Deniz Burnham, along with Roscosmos cosmonauts Dmitry Petelin and Konstantin Borisov, will crew the ISS-76 mission, the website of the Gagarin Research&Test Cosmonaut Training Center said. "ISS-76, Soyuz MS-30. The main crew: Petelin D. A., Borisov K. S., Burnham Deniz," it said. Petelin will be the commander of the