Jason 3 Mission Science Briefing

SpaceX Starship is set to propel itself into the record books today on its maiden flight, becoming the tallest, heaviest and most powerful rocket ever launched by humankind into space, topping a role call of famous and history-making heavy-lift launch vehicles including the mighty Saturn 5 that first took humans to the moon.

SpaceX teams at Cape Canaveral raised a Falcon 9 rocket vertical at the Complex 40 launch pad and performed a static fire test Friday. The Falcon 9 will be used to launch a commercial geostationary communications satellite no earlier than Monday at 7:10 p.m. EST (0010 GMT Tuesday).

Final preparations began this weekend at NASA’s Stennis Space Center in Mississippi to load super-cold liquid hydrogen and liquid oxygen into the massive core stage of the Space Launch System heavy-lift rocket for the first time as soon as Monday.