SpaceX Falcon Heavy 發射 X-37B 太空飛機現定於 12 月 28 日發射

The mission's four-hour launch window opens at 7 p.m. ET on Dec. 28.

該任務的四小時發射窗口於晚上 7 點開放。美國東部時間 12 月 28 日。

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 獵鷹重型火箭計畫於 2023 年 12 月發射，頂部搭載美國太空部隊的 X-37B 太空飛機。（圖片來源：SpaceX）如果一切按計畫進行，SpaceX 強大的獵鷹重型火箭將在今年年底前再次飛行。

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 目前計劃於 12 月 28 日發射美國太空軍的 X-37B 太空飛機，該飛機將搭載獵鷹重型火箭從佛羅裡達州 NASA 甘迺迪太空中心起飛。

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

當時間到來時，您可以在 Space.com 上觀看由 SpaceX 提供的活動。

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 原計劃於 12 月 11 日發射機器人 X-37B。但在當天預定升空時間前約 30 分鐘，該公司以地面設備問題為由取消了發射計畫。如果重型飛機按目前計劃於 12 月 28 日起飛，由此造成的延誤將延長 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.

即將到來的發射將是 29 英尺長（8.8 公尺）的 X-37B 的第七次發射，軍方官員表示，這主要是新太空技術的軌道測試台。

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 任務將持續多久；太空飛機飛行的大部分細節，包括其大部分有效載荷的身份和用途，都是保密的。但可以肯定的是，飛行時間將會很長。到目前為止，每一次 X-37B 任務的時間都比之前的任務更長，最近的一次任務在空中停留了 908 天，然後在 2022 年 11 月返回。

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

迄今為止，獵鷹重型火箭已經發射了八次，其中 2023 年已經發射了四次。

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.

重型火箭是目前運行中第二強大的火箭，僅次於 NASA 的太空發射系統，最後一次飛行是在去年 10 月，當時它向小行星帶發射了 NASA 的 Psyche 探測器。