NASA frames this as an “adjustment” rather than a delay. Although, delays are nothing new in spaceflight. It’s a high-stakes mission even if there won’t be any passengers aboard. Even a small error could result in a significant setback as NASA and SpaceX scramble to identify and fix the issue. A minor fuel leak on Boeing’s CST-100 Starliner crew capsule several months ago contributed to a multi-month delay in its testing schedule.