Elon Musk: 埃隆马斯克转发了推文： 猎鹰 9 号的第一级已降落在重力不足的无人驾驶飞船上——该助推器的第 14 次发射和着陆！

Elon Musk retweeted:

Falcon 9’s first stage has landed on the A Shortfall of Gravitas droneship – the 14th launch and landing of this booster!