NASA stopped a moon rocket test on Monday in Florida because of a fuel leak. The test was important because the rocket will carry astronauts around the moon in the future. Engineers found a problem while filling the rocket with very cold fuel. Because of this, the test did not finish as planned.

The fuel used was hydrogen, which is dangerous when it leaks. Engineers stopped the test to keep everyone safe. Four astronauts watched the test from another city and waited for results. NASA said the mission will help check rocket systems before future moon landings. The team will continue testing to fix the issue. Officials explained that careful work is necessary for space missions. The test will help NASA prepare for safe travel. This mission is part of a long-term plan to return humans to the moon.