Northrop Grumman’s S.S. Katherine Johnson arrives at the ISS Source: NASA Spaceflight Date Published: 02/20/2021 Northrop Grumman kicked off their 2021 launch manifest with the flight of an Antares rocket delivering the Cygnus spacecraft to the International Space Station from Pad 0A at the Mid-Atlantic Regional Spaceport (MARS) on Wallops Island, Virginia at 12:36:50 EST (17:36:50 UTC) Saturday, 20 February 2021. Continue Reading >