A SpaceX Falcon Heavy rocket topped with the U.S. Space Force's X-37B space plane stands on the launch pad ahead of a planned December 2023 liftoff. (Image credit: SpaceX)

SpaceX's powerful Falcon Heavy rocket will fly again before the end of the year, if all goes according to plan.

SpaceX 猎鹰重型火箭计划于 2023 年 12 月发射，顶部搭载美国太空部队的 X-37B 太空飞机。 （图片来源：SpaceX）如果一切按计划进行，SpaceX 强大的猎鹰重型火箭将在今年年底前再次飞行。

SpaceX is now targeting Dec. 28 for the launch of the U.S. Space Force's X-37B space plane, which will fly atop a Falcon Heavy from NASA’s Kennedy Space Center in Florida.

SpaceX 目前计划于 12 月 28 日发射美国太空军的 X-37B 太空飞机，该飞机将搭载猎鹰重型火箭从佛罗里达州 NASA 肯尼迪航天中心起飞。

You can watch the action here at Space.com, courtesy of SpaceX, when the time comes.

当时间到来时，您可以在 Space.com 上观看由 SpaceX 提供的活动。

SpaceX had originally planned to launch the robotic X-37B on Dec. 11. But about 30 minutes before the scheduled liftoff time that day, the company called things off, citing an issue with ground equipment. The resulting delay will now extend for 17 days, if the Heavy flies on Dec. 28 as currently planned.

SpaceX 原计划于 12 月 11 日发射机器人 X-37B。但在当天预定升空时间前约 30 分钟，该公司以地面设备问题为由取消了发射计划。如果重型飞机按目前计划于 12 月 28 日起飞，由此造成的延误将延长 17 天。

The coming launch will be the seventh overall for the 29-foot-long (8.8 meters) X-37B, which military officials say is primarily an orbital testbed for new space tech. 

即将到来的发射将是 29 英尺长（8.8 米）的 X-37B 的第七次发射，军方官员表示，这主要是新太空技术的轨道测试台。

It's unclear how long the X-37B mission will last; most details of the space plane's flights, including the identity and purpose of most of its payloads, are classified. But it's safe to assume the flight will be lengthy. Each X-37B mission to date has been longer than its predecessors, and the most recent one stayed aloft for 908 days before coming home in November 2022.

目前尚不清楚 X-37B 任务将持续多久；太空飞机飞行的大部分细节，包括其大部分有效载荷的身份和用途，都是保密的。但可以肯定的是，飞行时间将会很长。迄今为止，每一次 X-37B 任务的时间都比之前的任务更长，最近的一次任务在空中停留了 908 天，然后于 2022 年 11 月返回。

The Falcon Heavy has launched eight times to date, including four times in 2023 already.

迄今为止，猎鹰重型火箭已经发射了八次，其中 2023 年已经发射了四次。

The Heavy — the second-most powerful rocket currently in operation, after NASA's Space Launch System — last flew this past October, when it launched NASA's Psyche probe toward the asteroid belt.

重型火箭是目前运行中第二强大的火箭，仅次于 NASA 的太空发射系统，最后一次飞行是在去年 10 月，当时它向小行星带发射了 NASA 的 Psyche 探测器。