The 116-foot-long motors are standing vertically at the California Science Center, marking progress in the creation of a full-scale Space Shuttle replica.

NASA followed last week's low-key engine test with the test-firing of a solid-fueled booster at Northrop Grumman's rocket ...

The Space Shuttle, for reference, had just three main liquid-fueled rocket engines, along with two solid boosters.

The Space Shuttle was an engineering marvel that changed the face of space exploration, and understanding how it launched is ...

Two large Solid Rocket Motors that had been stored at Mojave Air and Space Port for the past three years left for Los Angeles to arrive at the California Science Center on Wednesday morning. The ...

Science Center officials said the shuttle’s rocket booster assembly has been completed with addition of the “forward assembly” — or cone-shaped tops — to the boosters.

The Artemis I mission’s rocket engines and boosters have direct ties to Columbia, Challenger and each of the other shuttles, and even one of the original Mercury 7 astronauts.

The Space Shuttle, for reference, had just three main liquid-fueled rocket engines, along with two solid boosters.

To get ready for Endeavour's grand move, crews will begin installation of the base of the shuttle's full stack on July 20 at the new Samuel Oschin Air and Space Center.