SpaceX发射星舰:巨型火箭首次轨道飞行任务


2026年9月28日 / 美国东部时间上午11:59 / 哥伦比亚广播公司新闻

太空探索技术公司(SpaceX)于周一完成了其“超重型星舰”的首次轨道飞行任务,这是完善这款全球最强大火箭的重要一步,为商业飞行和NASA的月球任务奠定基础。

星舰上面级的6台猛禽发动机中有一台在爬升至初始亚轨道轨迹的过程中提前关机。在评估遥测数据后,埃隆·马斯克的飞行控制团队认定航天器其余状态良好,随后使用单台猛禽发动机进行第二次点火,完成了入轨爬升。

在此之后,星舰上面级部署了26颗第三代星链互联网卫星,这些卫星将加入该公司不断壮大的卫星星座,这也是这款新型火箭首次用于发射近地轨道运行的业务卫星。

SpaceX星舰2026年9月28日从德克萨斯州星港发射台执行计划轨道任务的画面 SpaceX

卫星部署完成后,SpaceX控制人员选择提前让星舰返回地球,计划在发射约3小时后,在夏威夷以北的太平洋海域溅落。

对于NASA而言,让星舰成功入轨并返回,是及时完善该系统以支持2028年计划中的阿尔忒弥斯登月任务的关键步骤,此次任务将使用星舰的改进型号。

未来的月球任务将需要多次超重型星舰加油飞行,为着陆器加注燃料,使其能够飞往月球,并在月球轨道上与NASA的猎户座乘员舱对接,搭载两名宇航员并将他们送至月球表面再返回。

“恭喜@SpaceX!”NASA局长贾里德·艾萨克曼在社交媒体平台X上发文称,“发射过程堪称完美,成功将星舰送入轨道,并以安全、负责且极具启发性的方式完成了每一个步骤。@NASA以及所有关注此事的公众都期待着尽己所能,也期盼星舰任务能够早日成为常态!”

几乎没有人怀疑SpaceX最终将实现超重型星舰的可靠飞行,但目前尚不清楚该公司能否赶在NASA设定的2028年阿尔忒弥斯四号登月任务的雄心勃勃的截止日期前完成准备。

SpaceX星舰任务规划

超重型助推器的33台甲烷燃料猛禽发动机于美国东部时间上午8:49点火升空,伴随烈焰喷涌而出,这枚400英尺高的火箭迅速从德克萨斯州墨西哥湾沿岸的SpaceX星港发射场升空。

超重型一级助推器产生约1600万磅的推力——是NASA太空发射系统登月火箭的两倍——在消耗推进剂、重量减轻的同时快速加速,沿着东南方向的轨迹爬离厚重的低层大气。其中一台发动机提前关机,但超重型助推器的设计本就允许在损失一到两台发动机的情况下仍能抵达太空。

起飞后2分20秒,其余一级发动机开始关机,而驱动星舰上面级的6台猛禽发动机则在助推器分离脱离前几秒启动,完成“热分离”机动。

在星舰继续飞向太空的同时,超重型助推器完成翻转,重启发动机以反向推进,随后自行飞回德克萨斯州墨西哥湾沿岸。在所谓的“返回助推”过程中,又有一台发动机提前关机,但这枚巨型火箭仍顺利完成了离岸数英里外的垂直溅落。

发射前一周的燃料测试中,SpaceX超重型星舰火箭喷出的冰水蒸汽流 SpaceX

在最近一次的试飞中,三台发动机出现故障,导致返回助推燃烧无法持续全程,着陆燃烧仅启动了13台发动机中的8台,最终导致“硬溅落”。SpaceX进行了多项升级和软件修改,以确保本次任务成功返回。

一级助推器原本计划通过发射塔架上的巨型机械臂进行回收,SpaceX迄今已完成四次该操作。但在升级测试完成前,SpaceX选择以海上溅落作为安全预防措施。星舰上面级同样设计有返回发射台回收的能力,但这一里程碑尚未进行过尝试。

周一发射的星舰上面级通过两次发动机点火进入了180英里高度的轨道。第一次点火在助推器溅落后一分钟结束,目的是将星舰置于类似过往试飞的亚轨道轨迹,即使SpaceX失去对火箭的控制,也能确保安全溅落。

尽管有一台发动机提前关机,星舰仍获准继续执行轨道插入点火程序。在此之后8分半钟,火箭鼻锥内类似Pez糖果 dispenser的装置开始释放26颗第三代星链互联网卫星,每颗卫星的容量是上一代的10倍。

任务最初预计持续绕轨六圈,计划于下午6:40左右在智利海岸附近溅落。但随着星链卫星顺利入轨,任务管理者选择提前让星舰返回,计划在美国东部时间正午前于太平洋海域溅落。

与此前的试飞一样,星舰将以腹部先入的姿态重返大气层,在带电等离子体形成的火球中快速减速,随后通过翼面和襟翼控制下降姿态。最后,三台猛禽发动机将重新点火,星舰翻转至垂直姿态,最终以尾部先触的方式溅落。

阿尔忒弥斯登月计划中的未来角色

SpaceX目前在德克萨斯州的星港设施拥有两个超重型星舰发射台,佛罗里达州另有三个正在建设中,其中包括肯尼迪航天中心历史悠久的39A发射台,以及相邻的卡纳维拉尔角太空军基地的另外两个发射台。SpaceX计划于今年年底或明年年初从佛罗里达进行首次发射。

而多次发射任务将需要多个发射台。

月球表面星舰着陆器的艺术渲染图 NASA/SpaceX

SpaceX正在研发星舰的改进型号,作为阿尔忒弥斯计划宇航员的着陆器。在月球任务中,该公司需要发射约15架次超重型星舰加油机,为月球着陆器加注燃料,随后着陆器将飞往月球,等待搭载宇航员的洛克希德·马丁公司制造的猎户座舱段抵达。

届时,这架165英尺高的着陆器将搭载两名机组人员下降至月球表面,在月球南极附近垂直着陆。宇航员随后将通过外部电梯往返于着陆器和月球表面,完成探索任务后再返回着陆器。

首次此类着陆任务目标定于2028年,SpaceX必须加快超重型星舰的试飞进度,以获得载人航天飞行认证,并证明其可靠性,确保能够在着陆器发射后的数天内安全发射十余架次加油机。

许多拥有NASA及其他航空航天行业过往经验的观察人士怀疑,SpaceX无法在2028年前交付经过测试的“载人着陆系统”星舰改进型号。NASA也在分散风险,为蓝色起源设计的另一款着陆器提供研发资金。

在明年的近地轨道试飞任务——阿尔忒弥斯三号——中,NASA计划发射搭载四名宇航员的猎户座舱段,与SpaceX和蓝色起源分别发射的原型着陆器进行交会对接。

SpaceX launches Starship on giant rocket’s first flight to orbit

September 28, 2026 / 11:59 AM EDT / CBS News

SpaceX launched the company’s Super Heavy-Starship on its first flight to orbit Monday, a major step toward perfecting the world’s most powerful rocket for commercial flights and NASA moon missions.

One of the Starship upper stage’s six Raptor engines shut down early during the climb to an initially suborbital trajectory. After assessing telemetry, Elon Musk’s flight control team decided the spacecraft was otherwise healthy and a second engine firing using a single Raptor engine completed the climb to orbit.

Right after that, the Starship upper stage deployed 26 third-generation Starlink internet satellites that will join the company’s ever growing constellation in the first use of the new rocket to launch operational satellites in low-Earth orbit.

SpaceX Starship launches on a planned orbital mission from Starbase, Texas, on Sept. 28, 2026. SpaceX

After the satellites were away, SpaceX controllers opted to bring the Starship back to Earth ahead of schedule, aiming for a Pacific Ocean splashdown north of Hawaii about three hours after launch.

For NASA, getting the Starship into orbit and back are critical steps on the road to perfecting the system in time to support a plannedArtemis moon landing, using a variant of the Starship, in 2028.

A future moon mission will require multiple Super Heavy-Starship tanker flights to fuel the lander for its flight to the moon before docking with a NASA Orion crew capsule in lunar orbit, picking up two astronauts and carrying them down to the surface and back.

“Congrats@SpaceX!,” NASA Administrator Jared Isaacman said in a post on the social media platform X. “Gorgeous launch, getting Ship to orbit and managing every step in a safe, responsible, and especially inspirational way.@NASA, along with the rest of the interested public, is excited to help where we can and for Starship missions to become routine!”

Few doubt SpaceX will eventually get the Super Heavy-Starship flying reliably, but it’s not yet known whether the company will be able to meet NASA’s ambitious 2028 target date for the Artemis IV moon landing.

SpaceX Starship mission plan

The Super Heavy booster’s 33 methane-burning Raptor engines ignited with a rush of flame at 8:49 a.m. EDT, quickly propelling the 400-foot-tall rocket away from SpaceX’s Starbase launch site on the Texas Gulf Coast.

The Super Heavy first stage booster, generating some 16 million pounds of thrust — twice the power of NASA’s Space Launch System moon rocket — rapidly accelerated as it consumed propellant and lost weight, climbing out of the thick lower atmosphere along a southeasterly trajectory. One of the engines shut down early, but the Super Heavy was designed to reach space despite the loss of one or two engines.

Two minutes and 20 seconds after liftoff, the rest of the first stage engines began shutting down while the six Raptors powering the Starship upper stage began firing up in a “hot staging” maneuver seconds before the the booster separated and fell away.

While the Starship continued toward space, the Super Heavy booster flipped around, restarted its engines to reverse course and then flew itself back to the Texas Gulf Coast. A second engine apparently shut down early during the so-called boost-back burn, but the huge rocket was able to execute a seemingly normal vertical splashdown a few miles off shore.

Icy water vapor streams away from SpaceX’s Super Heavy-Starship rocket during a fueling test a week before launch. SpaceX

During the most recent previous test flight, three engines suffered problems that prevented a full-duration boost-back burn and only eight of 13 engines fired for the landing burn. The result was a “hard” splashdown. SpaceX implemented multiple upgrades and software changes to ensure a successful return this time around.

The first stage is designed to be captured by giant mechanical arms on its launch gantry, a feat SpaceX has accomplished four times to date. But until upgrades and improvements have been tested, SpaceX has opted to stick with ocean splashdowns as a safety precaution. The Starship upper stage also is designed to be captured back at the pad after a trip to space and back, but that milestone has not yet been attempted.

The Starship upper stage launched Monday climbed into a 180-mile-high orbit with two engine firings. The first, ending a minute after the booster’s splashdown, was intended to put the Starship onto a sub-orbital trajectory similar to past flights that would result in a safe splashdown even if SpaceX lost control of the rocket.

Despite the premature shutdown of one engine, the Starship was cleared to proceed with the orbit-insertion burn and eight-and-a-half minutes after that, a Pez-like dispenser in the rocket’s nose began launching 26 third-generation Starlink internet satellites, each with 10 times the capacity of the previous generation.

The mission was initially expected to last six orbits, leading to a splashdown off the coast of Chile around 6:40 p.m. But with the Starlink satellites safely on their way, mission managers opted to bring the ship down early with a planned Pacific Ocean splashdown just before noon EDT.

As with earlier test flights, the Starship will fall back into the discernible atmosphere belly-first, rapidly slowing in a fireball of electrically charged plasma before using its fins and flaps to control its orientation during the descent. Finally, three Raptor’s will re-ignite, the ship will flip up to vertical and settle to a tail first splashdown.

Future role in Artemis moon program

SpaceX currently has two Super Heavy-Starship pads at its Starbase facility in Texas and three more under construction in Florida, including one at historic pad 39A at the Kennedy Space Center and the others at the adjacent Cape Canaveral Space Force Station. SpaceX plans its initial launch from Florida late this year or early next.

And multiple pads will be needed.

An artist’s impression of a Starship moon lander on the lunar surface. NASA/SpaceX

SpaceX is building a variant of the Starship to serve as a lander for Artemis astronauts. For moon missions, the company will need to launch up to 15 or so Super Heavy-Starship tankers to refuel the company’s lunar lander before it can head for the moon to await the arrival of astronauts in a Lockheed Martin-built Orion capsule.

From there, the 165-foot-tall lander will carry two crew members down to the surface, landing vertically near the moon’s south pole. The astronauts then will ride an external elevator down to the surface and back up again when their exploration is complete.

With the first such landing targeted for 2028, SpaceX must ramp up its Super Heavy-Starship test schedule to get the vehicle certified for human spaceflight and to demonstrate the reliability required to safely launch more than a dozen tankers within days of the lander’s launch.

Many observers with past experience at NASA and elsewhere in the aerospace industry doubt SpaceX can deliver a tested “human landing system” Starship variant by 2028. NASA is hedging its bets, funding development of an alternative lander designed by Blue Origin.

During a test flight in low Earth orbit next year — Artemis III — NASA plans to launch four astronauts in an Orion capsule who will attempt to rendezvous and dock with prototype landers launched separately by SpaceX and Blue Origin.

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