t's the first crash of its kind, but NASA says it doesn't pose a threat to the International Space Station. The accident occurred on Tuesday, creating a massive explosion with much debris scattering through space. It’s still unclear what caused the collision, which has become the first-ever involving two intact satellites. The privately-owned American satellite – Iridium – was launched in 1997 and used for satellite telephone networks. The Russian Cosmos satellite was launched in 1993 and, according to NASA and Pentagon officials, had been non-operational for about 10 years.