This is the moment NASA tests one of their new RS-25 Engine space engines that will help to send future rockets to the moon, and eventually to Mars.The tests were carried out at the newly installed A-1 Test Stand at Stennis Space Center near Bay St Louis, Mississippi, yesterday, 28th January.The upgraded engines will be used for flights under the Artemis Program and will be fired seven times for a total of 3,650 seconds during the first half of this year to gather data for Aerojet Rocketdyne, which is the main contractor involved in producing engines for the agency's Space Launch System (SLS) rocket.(NASA/Newsflash)