The DS-U3-S satellites were Soviet scientific satellites launched as part of the Dnepropetrovsk Sputnik program. They investigated micrometeoroids and particles of dust in space.
The Kosmos rockets were a series of Soviet and subsequently Russian rockets, derived from the R-12 and R-14 missiles.
The Strategic Rocket Forces of the Russian Federation are a separate-troops branch of the Russian Armed Forces that control Russia's land-based intercontinental ballistic missiles (ICBMs).
WIKI