‘Superman’ star Nathan Fillion staunchly defends his character’s extreme hairstyle: ‘I was team bowl cut the whole way’ ...

The 156-foot-long five-segment solid rocket motor produced upwards of 4 million pounds of thrust during the test.

Officials are investigating an unexpected explosion that occurred during a solid rocket booster test in Utah last week, raising questions about a key component of the Artemis moon missions.

The new booster is is scheduled to launch on the ninth Artemis lunar mission in the 2030s — but there's a chance that it will never fly.

As the August launch date for NASA's first Artemis lunar mission approaches, Northrop Grumman has released dramatic video footage of a full-scale static fire test of the giant solid-fueled Flight ...

Assembly of the Artemis II moon rocket has reached its latest milestone with the stacking of the twin boosters' right forward center segment, NASA announced Friday.

Northrop Grumman saw some fiery drama during a test of a more powerful version of the solid rocket booster that would be used if NASA’s Artemis program ever gets to its ninth launch using the ...

Processing of NASA's Artemis II Space Launch System rocket is in full swing as solid rocket boosters delivered to Kennedy Space Center in Florida.

Related: These two solid rocket boosters will help heft the 322-foot (98-meter) SLS to space, along with the four astronauts of the Artemis 2 crew.

The latest test included the firing of a solid booster meant to replace NASA’s shuttle-era rocket parts.

For Artemis 1, the SLS solid rocket boosters were built up from aft skirts, thrust vector control elements, metal cases and forward structures that were previously flown with the shuttle.

Northrop Grumman Corporation and NASA successfully conducted a full-scale static fire of NASA’s SLS rocket motor, known as Flight Support Booster-2.