This is the 15th planned flight of the Orbital ATK's uncrewed resupply spacecraft Cygnus and its 14th flight to the International Space Station under the Commercial Resupply Services contract with NASA. This Cygnus spacecraft carries the name of American mathematician Katherine Johnson, whose calculations of orbital mechanics as a NASA employee were critical to the success of the first and subsequent U.S. crewed spaceflights.
Low Earth OrbitThe SN9 Starship performed a first flight similar to the one of SN8. It launched up to an altitude of 10 km or 33,000 ft, did a belly flop maneuver and a controlled descent to the landing pad where the landing flip maneuver was unsuccessful and resulted in the destruction of the prototype on impact.
Suborbital SN9 - Maiden Flight SpaceX Starship Landing Pad