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NASA’s new moon rocket sprang a leaky hose Saturday, forcing launch controllers to call off their second attempt to send a crew capsule into lunar orbit with test dummies.

The launch time was supposed to be at 2:17 p.m. with a two-hour window.

NASA Administrators; Bill Nelson, Associate Administrator for Exploration Systems Development Jim Free and Artemis Mission Manager Mike Sarafin held a press conference around 4 p.m. discussing the second Artemis scrubbed launch this week.

WPBF 25 News will stream the launch live on-air, in this article and on our social media platforms. Stay with us for the latest updates.

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Launch director Charlie Blackwell-Thompson and her team tried to plug Saturday’s leak the way they did the last time: stopping and restarting the flow of super-cold liquid hydrogen in hopes of removing the gap around a seal in the supply line.

They tried that twice, in fact, and also flushed helium through the line. But the hose would not seal, and therefore, was leaking around the hose.

Blackwell-Thompson finally halted the countdown after three to four hours of futile effort.

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The mission, includes the Space Launch System Rocket and Orion spacecraft, and was targeted for liftoff from NASA's Kennedy Space Center.

The 322-foot rocket is the most powerful ever built by NASA, out-muscling even the Saturn V that carried astronauts to the moon a half-century ago.

NASA said they would change the loading procedure during the second attempt and planned to start the engine chill-down process earlier. The temperature of engine 3 was one of the reasons for the first scrub earlier in the week.

The first attempt was also marred by escaping hydrogen, but those leaks were elsewhere on the 322-foot (98-meter) rocket, the most powerful ever built by NASA.

Officials said at a press conference Thursday if they had to scrub the launch again, they would aim for Monday, depending on the reason.

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NASA and Artemis officials said the scrubbed launch allows them to review the rocket and brings nostalgia toward their space predecessors.

"We are trying to do something that hasn't been done in over 50 years," Artemis I mission manager Mike Sarafin said. "And we're doing it with new technology."

"(The space pioneers) before us didn't know it could be done, which is even more impressive," said NASA associate administrator Jim Free.

Even though no one is on board for the Artemis I mission, thousands of people jammed the coast to see the rocket soar. Vice President Kamala Harris toured the mission hardware.

Video below: Watch the full press conference after the first launch attempt was scrubbed

Orion's journey will last 42 days as it travels to the moon, loops around it and returns to Earth — traveling a total of 1.3 million miles. The capsule will splash down in the Pacific Ocean off the coast of San Diego on Oct. 10.

While the passenger list doesn't include any humans, it does have passengers: three mannequins and a plush Snoopy toy will ride in Orion.

The crew aboard Artemis I may sound a little unusual, but they each serve a purpose. Snoopy will serve as the zero gravity indicator — meaning that he will begin to float inside the capsule once it reaches the space environment.

The mannequins, named "Commander Moonkin Campos," "Helga" and "Zohar," will measure deep space radiation future crews could experience and test a new suit and shielding technology. A biology experiment carrying seeds, algae, fungi and yeast is tucked inside Orion to measure how life reacts to this radiation as well.

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Cameras inside and outside of Orion will share images and video throughout the mission, including live views from the Callisto experiment, which will capture a stream of "Commander Moonikin Campos" sitting in the commander's seat. People with Amazon Alexa-enabled devices can ask it about the mission's location each day.

Science experiments and technology demonstrations are riding in a ring on the rocket. The 10 small satellites, called CubeSats, will detach and go their separate ways to collect information on the moon and the deep space environment.

Assuming the test goes well, astronauts would climb aboard for the second flight and fly around the moon and back as soon as 2024. A two-person lunar landing could follow by the end of 2025.

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This article contains information from The Associated Press.

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