NASA fired up RS-25 engine No. 20001 at the Fred Haise Test Stand at NASA’s Stennis Space Center at Bay St. Louis, Mississippi. The test lasted about "eight-and-a-half minutes (500 seconds), the same amount of time RS-25 engines fire during a launch of an SLS (Space Launch System) rocket on Artemis missions to the Moon,

Nasa's giant Moon rocket has returned to its launch pad for a second time, ahead of a mission to send astronauts around the Moon – something not attempted in more than 50 years.

NASA is targeting April 1 as the earliest possible launch of the rocket sending NASA astronauts Reid Wiseman, Victor Glover, and Christina Koch, along with CSA (Canadian Space Agency) astronaut Jeremy...