SLS EM-1 Mission Making Progress, but STILL Behind Schedule

Top NASA human exploration administrators briefed the Human Exploration Operations (HEO) committee of the NASA Advisory Council (NAC) on March 26, providing an update on development, testing, and preparations for the first integrated flight of the Orion crew spacecraft and the Space Launch System (SLS) rocket. Exploration Mission-1 (EM-1) is currently expected to launch in 2020.

The pacing items for reaching launch readiness, referred to as “critical paths” in the schedule, continue to be construction of the first SLS Core Stage and the first Orion European Service Module (ESM). The agency is targeting the end of 2019 as a target launch date, but both critical path items are running around three months behind that schedule.

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