The towering rocket NASA will use to help propel four astronauts on a historic trip around the moon is vertical on the launch pad, and you can see it anytime.

NASA is conducting a final major test, known as a wet dress rehearsal, for its SLS rocket ahead of the Artemis II mission.

Teams will be filling the Space Launch System rocket and Orion spacecraft with 700,000 gallons of cryogenic propellant during the wet dress rehearsal at KSC’s Launch Pad 39-B that will bring the count...