NASA is getting ready to launch its massive, fully expendable rocket for the first crewed flight to the Moon since Apollo.

Artemis 2's Space Launch System rocket core stage was fitted with 4 RS-25 engines at NASA’s Michoud Assembly Facility in New ...

NASA conducted a test of its newly redesigned RS-25 engine for future flights of the Space Launch System (SLS) rocket.

NASA has completed over 100 cold-flow tests of a full-scale nuclear rocket reactor prototype, demonstrating stable hydrogen ...

At Stennis Space Center, NASA conducted another successful hot fire test of an RS-25 engine at the Fred Haise Test Stand.

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 ...

The U.S. is the only country to have ever sent humans to the moon.

When I was an aerospace engineer working on the NASA Space Shuttle Program, trust was mission-critical. Every bolt, every line of code, every system had to be validated and tested carefully, or the ...

The rocket is about to traverse four miles to the launchpad — at about 1 mph.

Add Yahoo as a preferred source to see more of our stories on Google. 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.