SLS program

The SLS or space launch system program is a NASA program that aims to return astronauts to moon by 2024. The last time USA sent astronauts to the moon was in 1972 when Eugene Cernan walked on the lunar surface. The SLS program is currently 3 years behind schedule and more than 3 billion USD over the budget. NASA is set to carry out its hot fire test on engines that could be used for the next manned- lunar mission.