星舰StarShip原型SN15完整地完成了测试，包括一直没有成功的着陆动作。
下落过程中，两个Raptor发动机着陆点火（Landing Burn）成功，发动机矢量推力的角度动态调整，结合舰体的RCS(Reaction Control System，反应控制系统或反作用喷流控制系统)调整姿态，星舰SN15实现了平稳软着陆。
星舰着陆后，尾部有明火燃烧。随后传来消息说明火已被扑灭，没有发生如SN10一样的着陆后爆炸。
Elon随即发消息说，’Starship landing nominal!‘，这次星舰是真得着陆了。BTW，nominal算是个航空航天术语，指在预设的可接受限制条件下，达到预期目标。
nominal — Aerospace
—Source: What does ‘nominal’ mean when Spacex mission control says it?
performing or achieved within expected, acceptable limits;
normal and satisfactory;
SN15软着陆后，小短腿有些损坏，看来“软”的程度不够。在后续测试中，着陆的各种参数，例如着陆时发动机推力和角度等，定会根据着陆情况持续优化。
Credit: @StarshipGazer
正如SpaceX软件团队如下所言，测试过程中获取的“成吨”的数据极具价值，为后续改进提供数据支撑：
Even operations that are in developmental testing provide critical data. “When Starship SN15 had a hard (and exciting!) landing, people assumed we would be unhappy, but we were celebrating,” says Madonia. “We did so many successful maneuvers and we were able to gather a ton of valuable data to improve our next attempt.”
Building the software that helps build SpaceX