The Molniya-M (Russian: Молния, meaning "lightning"), designation 8K78M, was a Russian (previously Soviet) carrier rocket derived from the R-7 Semyorka ICBM.The original 8K78 booster had been the product of a rushed development program and its launch record was no better than the 8K72 Luna booster of 1958-60. As 1962 ended, there had been 12 launches of 8K78s, 10 of which failed (five Blok L failures, four Blok I failures, and one failure caused by the Blok A core stage).