hello and welcome if you re watching in the uk or around the world. nasa tried and failed again on saturday to get its space launch system vehicle to lift off from florida s kennedy space center. the countdown had to be halted because of a fuel leak the second postponement in a week. the artemis programme aims to return humans to the moon in 2025, but the nasa team have suggested that there may now be a significant delay to the project. our science editor, rebecca morelle, gave us the latest from kennedy space center, in florida. there is a real sense of disappointment here but the problems started early on, and when the rocket was being fuelled, a large hydrogen leak was spotted, and this is not a good thing. the team tried to fix it three times but their troubleshooting did not work and the loach was stopped. over the last few hours, they have been poring over the data to find out what went wrong and they have announced the rocket will need significant repair work. this m
month or so. this is a new vehicle and these things happen, unfortunately. it is using heritage hardware, the space shuttle main engine is very well understood, it is using the backbone, if you will, of the external tank of the shuttle, also well understood, so i am a little surprised that there have been the issues that have been but, you know, we have to deal with it and flight when we are ready. lastly, and briefly, we want to try to get humans back on the moon as soon as possible is the aim of nasa, 2025, what is your betting on whether that actually happens? i don t think we will get humans back on the surface of the moon by 2025, i think maybe by then we can get an apollo eight type mission that launches astronauts into orbit around the mode but not land, and the reason i say that is because we do not have a lander yet. we have