NASA partially completed the Green Run Wet Dress Rehearsal (WDR) test of the Space Launch System (SLS) Core Stage on the second attempt in the B-2 Test Stand at the Stennis Space Center.

While the design of SLS went through a number of rigorous reviews – via the RAC (Requirements Analysis Cycle) effort – which allowed alternative rockets to be considered as NASA’s next HLV ...

Nasa says the SLS is "the only rocket that can send Orion, astronauts, and cargo directly to the moon in a single launch." But its expense has been criticized: each SLS launch is estimated to cost ...

On Wednesday, one of the Republican space policy leaders most consistently opposed to commercial heavy lift rockets over the last decade—as an alternative to NASA's large SLS rocket—has ...

If you buy through a BGR link, we may earn an affiliate commission, helping support our expert product labs. NASA has been leaning heavily on SpaceX in recent years, but when it comes to the ...

The SLS rocket costs NASA $3 billion a year even when it doesn't launch, and more than that when it does. The Trump administration is looking to cut government spending, and SLS-builder Boeing ...

18. Credit: NASA/Danny Nowlin NASA’s Stennis Space Center will begin acceptance testing next month of newly manufactured Space Launch System (SLS) RS-25 rocket engines developed by L3Harris for ...

The primary contractor for the Space Launch System rocket, Boeing, is preparing for the possibility that NASA cancels the long-running program. On Friday, with less than an hour's notice, David ...