WASHINGTON, United States (AFP) — NASA successfully carried out a key static test of its troubled Space Launch System rocket on Thursday, a win for the agency as it prepares to return to the Moon. The second “hot fire” test saw all four of the rocket’s RS-25 engines fire simultaneously at 4:40 pm Eastern time (1940 GMT) for the full duration of eight minutes, producing a maximum of 1.6 million pounds of thrust (7.1 million […]