NASA will provide live launch and docking coverage of a Roscosmos cargo spacecraft delivering supplies to the International Space Station.The unpiloted Roscosmos Progress 91 spacecraft is scheduled to launch on February 27 and dock to the space station on March 1.The spacecraft will remain docked for six months before disposing of the trash loaded by the crew.The International Space Station enables research in space and serves as a springboard for NASA's future exploration missions to the Moon and Mars.