A Falcon 9 rocket with a Cygnus supply freighter blasted off on a mission to the International Space Station on August 4, just a few days after a two-week break due to launch problems. A Falcon 9 rocket with a Cygnus supply freighter blasted off on a mission to the International Space Station on August 4, just a few days after a two-week break due to launch problems. Space Exploration Phys.org – latest science and technology news stories