Commercial Cargo’s Lower Costs Brought Higher Risks
By Douglas Messier
In October 2014, NASA engineers were deeply worried about Orbital Sciences Corporation’s upcoming Orb-3 commercial resupply mission to the International Space Station (ISS).
An Antares booster was set to send a Cygnus cargo ship loaded with 2,215 kg (4,883 lb) of supplies to astronauts aboard the orbiting laboratory. It would be the third of eight Cygnus flights to the station under a Commercial Resupply Services-1 (CRS-1) contract worth $1.9 billion.