The lights may be starting to go out for NASA's Space Launch System program. On Wednesday, one of the Republican space policy leaders most consistently opposed to commercial heavy lift rockets ...

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 ...

On Monday, NASA had planned to attempt the first test flight of the Space Launch System (SLS), a powerful megarocket that will launch the Orion spacecraft. This is the Artemis I mission ...

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 ...

Now NASA is pushing to accelerate the timeline. There are still a lot of parts in play. On Friday morning the core stage of the SLS rocket sat in one corner of the assembly building, but it is ...

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The mission is expected to launch no earlier than September 2025, and will be the second flight of NASA's Space Launch System (SLS). It has several goals, one of them being to take the first step ...

First published more than 125 years ago, the great author's quip about his rumored demise applies well to the situation today with NASA's Space Launch System (SLS), a 322-foot tall rocket designed ...