The slow race of getting NASA's Space Launch System rocket pieced together for next year's Artemis II moon mission jumped a ...

The core stage of NASA's next Space Launch System (SLS) rocket recently completed integration with the vehicle's side ...

He called the SLS a “primary concern” for NASA’s current Artemis architecture because of its expense and lack of reusability. “It’s time to consider alternatives for going from the Earth ...

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 ...