taking up the habit. and after a two year pause due the pandemic, europe s largest street party kicks off its final day at the notting hill carnival in west london. nasa has cancelled today s launch of its most powerful rocket, artemis one, which had been due to take off for an uncrewed test flight to the moon. the us space agency said one of its engines had developed a bleed that couldn t be fixed in time; the next possible launch date is friday the second of september. the artemis programme aims to return humans to the moon. if successful, the plan is for astronauts to be on board the flight in two years time. our science correspondent, jonathan amos told us what went wrong frustrating day today, ben, it really was. we had a number of little issues that cropped up. when we got here, it was pouring with rain and that delayed them tanking, putting all the propellants that they needed to go in this monster rocket over my shoulder. then they thought they had a crack halfway up
here in ukraine saying it was essential to allow international monitors into the nuclearfacility. he also talked about the need to create a demilitarised zone around the facility. so far the russians haveit the facility. so far the russians have it rejected this idea. have it re ected this idea. thank ou have it rejected this idea. thank ou hu~o have it rejected this idea. thank you hugo for have it rejected this idea. thank you hugo for bringing have it rejected this idea. thank you hugo for bringing us - have it rejected this idea. thank you hugo for bringing us up - have it rejected this idea. thank you hugo for bringing us up to l have it rejected this idea. thank you hugo for bringing us up to date. nasa postpones the launch of the artemis space rocket on its mission to the moon, due to last minute technical issues. the next opportunity for the launch is on friday. the head of the institute for fiscal studies labels some of liz truss s tax cutting policies as worrying and in