NASA continued with a “wet dress” rehearsal for the Artemis II moon rocket, successfully loading over 750,000 gallons of fuel despite a hydrogen leak. The countdown paused at T-minus 5 minutes due to a liquid hydrogen leak and will require a detailed review to determine if the launch can occur as soon as Sunday. The SLS rocket, standing 332 feet tall, aims to carry four astronauts on a lunar mission. Previous tests faced similar issues, causing delays in the program.