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Boeing Starliner spacecraft successfully returns to flight 29 months after ill-fated debut

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More than three years after SpaceX’s Crew Dragon spacecraft first safely reached orbit and almost three and a half years after Boeing’s Starliner crew capsule’s ill-fated launch debut, Boeing has finally returned to flight and made it farther than ever before towards a successful test flight.

Almost ten months after Boeing’s first attempt at Starliner’s second uncrewed Orbital Flight Test (OFT-2 #1), the stars aligned. As expected, the United Launch Alliance’s Atlas V rocket lifted off on time at 6:54 pm EDT (22:54 UTC) on Thursday, May 19th, ascending from Cape Canaveral Space Force Station (CCSFS) Launch Complex 41 (LC-41) without issue. After a four and a half minute burn, the Atlas V booster – powered by a Russian-built RD-180 engine – separated and the Centaur upper stage – powered by two Aerojet Rocketdyne RL-10 engines – took over.

Another six minutes later, Centaur shut down and Starliner ultimately separated from the rocket a bit less than 12 minutes after liftoff. Unlike SpaceX’s Crew Dragon, though, Starliner separated from its launch vehicle before reaching orbit – a task Boeing engineers chose to reserve for the spacecraft itself to limit stress on the spacecraft and crew in the event of a high-altitude abort. However, that design decision also adds significant risk in other ways and – after the spacecraft’s extremely poor performance during its first launch attempt – turns a Starliner launch into a sort of 30-minute cliffhanger.

While just a hair shy of true orbit, Starliner’s suborbital launch trajectory means that whether or not it wants to, the spacecraft will reenter Earth’s atmosphere about an hour after liftoff if it can’t complete a minute-long orbital insertion burn. In the case of OFT-2, that burn came about 31 minutes after liftoff and was thankfully successful, inserting Starliner into a stable, circular orbit and undoubtedly triggering a massive wave of relief for all employees involved. From that stable orbit, Starliner can finally begin to prepare to rendezvous with the International Space Station (ISS) for the first time ever.

The story of Starliner’s tortured orbital flight test (OFT) campaign began in earnest on December 20th, 2019, when an uncrewed prototype of the Boeing spacecraft first attempted to launch to the International Space Station (ISS) atop a United Launch Alliance (ULA) Atlas V rocket. Infamously, a major software bug that could have been easily detected with even the most basic integrated hardware-in-the-loop prelaunch testing caused Starliner to lose control the moment it separated from Atlas V. Only through a heroic last-second effort was Boeing able to insert Starliner into orbit and prevent the spacecraft from reentering prematurely, which would have likely destroyed it. After hundreds of seconds of unplanned burns of its many attitude control thrusters, Starliner no longer had enough propellant to safely reach the ISS.

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Boeing would later correct another completely unrelated software bug mere hours before Starliner’s planned reentry and recovery. If undetected, it could have caused the spacecraft’s capsule and service sections to crash into each other shortly after separation, potentially damaging the capsule’s heat shield and dooming it to destruction during reentry. Had astronauts been aboard, either of the two software bugs could have potentially resulted in crew fatalities and total mission failure. Instead, through a combination of sheer luck and a quick emergency response from Boeing and NASA teams, the spacecraft was saved and recovered in New Mexico.

On a positive note, aside from raising deep and foreboding questions about Boeing’s software development and integrating testing capabilities and NASA’s inept and inconsistent oversight, OFT-1 did still demonstrate that Starliner was able to reach orbit, operate in space, deorbit, survive atmospheric reentry, and land softly under parachutes.

However, the problems were about to continue and spread beyond software. On July 30th, 2021, shortly before a different uncrewed Starliner was scheduled to reattempt the first Orbital Flight Test, the launch was aborted. Eventually, Boeing and NASA reported that 13 of Starliner’s 24 main oxidizer valves had failed to open during a prelaunch test just a few hours before liftoff. The resulting investigation ultimately concluded that the Aerojet Rocketdyne-supplied valves had a faulty design and that Boeing had failed to properly insulate those valves from humidity and water intrusion. It also delayed the next OFT-2 launch attempt by almost ten months.

But finally, after almost 30 months of work to rectify those software and hardware failures, Starliner has intentionally reached a stable orbit without running into a major problem – certainly cause for some amount of optimism. Still, safely rendezvousing and docking with the ISS may be the biggest and riskiest challenge Starliner has faced yet and Boeing will be attempting the feat for the first time in its modern history. Starliner is expected to begin proximity operations around 3 pm EDT on May 20th. If the first attempt is perfect, docking could occur as early as 7:10 pm EDT.

Ultimately, even if Boeing is now more than three years behind SpaceX, whose Crew Dragon spacecraft first reached orbit and the ISS in March 2019 and launched its first astronauts in May 2020, it’s essential that NASA has two redundant crew vehicles available to carry its astronauts to and from the station. SpaceX’s extraordinary success and heroic efforts have allowed the company to singlehandedly ensure NASA access to the ISS since November 2020, but no complex system is perfect and even a failure outside of SpaceX’s control could trigger a long delay that could threaten NASA’s uninterrupted presence on the International Space Station.

NASA has contracts with SpaceX to maintain that uninterrupted presence at the ISS through Crew Dragon’s Crew-7 mission, which could launch as early as September 2023 and would then return to Earth around March 2024. If OFT-2 is completed without significant issue, Boeing’s next priority is Starliner’s Crew Flight Test (CFT), a crewed launch debut that could happen before the end of 2022.

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After that, Starliner’s first operational crew launch could potentially occur in Q1 2024, just before Crew Dragon’s Crew-7 recovery. Following Crew Dragon’s near-flawless uncrewed test flight, it took another 14 months for NASA and SpaceX to proceed to Demo-2, Dragon’s Crew Flight Test equivalent. Dragon’s first operational astronaut launch occurred in November 2020, 20 months after its uncrewed demo flight. If NASA follows a similar path for Starliner, that meshes well with an operational debut in early 2024.

Eric Ralph is Teslarati's senior spaceflight reporter and has been covering the industry in some capacity for almost half a decade, largely spurred in 2016 by a trip to Mexico to watch Elon Musk reveal SpaceX's plans for Mars in person. Aside from spreading interest and excitement about spaceflight far and wide, his primary goal is to cover humanity's ongoing efforts to expand beyond Earth to the Moon, Mars, and elsewhere.

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Tesla posts Optimus’ most impressive video demonstration yet

The humanoid robot was able to complete all the tasks through a single neural network.

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Credit: Tesla Optimus/X

When Elon Musk spoke with CNBC’s David Faber in an interview at Giga Texas, he reiterated the idea that Optimus will be one of Tesla’s biggest products. Seemingly to highlight the CEO’s point, the official Tesla Optimus account on social media platform X shared what could very well be the most impressive demonstration of the humanoid robot’s capabilities to date.

Optimus’ Newest Demonstration

In its recent video demonstration, the Tesla Optimus team featured the humanoid robot performing a variety of tasks. These include household chores such as throwing the trash, using a broom and a vacuum cleaner, tearing a paper towel, stirring a pot of food, opening a cabinet, and closing a curtain, among others. The video also featured Optimus picking up a Model X fore link and placing it on a dolly.

What was most notable in the Tesla Optimus team’s demonstration was the fact that the humanoid robot was able to complete all the tasks through a single neural network. The robot’s actions were also learned directly from Optimus being fed data from first-person videos of humans performing similar tasks. This system should pave the way for Optimus to learn and refine new skills quickly and reliably.

Tesla VP for Optimus Shares Insight

In a follow-up post on X, Tesla Vice President of Optimus (Tesla Bot) Milan Kovac stated that one of the team’s goals is to have Optimus learn straight from internet videos of humans performing tasks, including footage captured in third person or by random cameras.

“We recently had a significant breakthrough along that journey, and can now transfer a big chunk of the learning directly from human videos to the bots (1st person views for now). This allows us to bootstrap new tasks much faster compared to teleoperated bot data alone (heavier operationally).

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“Many new skills are emerging through this process, are called for via natural language (voice/text), and are run by a single neural network on the bot (multi-tasking). Next: expand to 3rd person video transfer (aka random internet), and push reliability via self-play (RL) in the real-, and/or synthetic- (sim / world models) world,” Kovac wrote in his post on X.

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Starship Flight 9 nears as SpaceX’s Starbase becomes a Texan City

SpaceX’s launch site is officially incorporated as Starbase, TX. Starship Flight 9 could launch on May 27, 2025. 

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(Credit: Jenny Hautmann/Wikimedia Commons)

SpaceX’s Starbase is officially incorporated as a city in Texas, aligning with preparations for Starship Flight 9. The newly formed city in Cameron County serves as the heart of SpaceX’s Starship program.

Starbase City spans 1.5 square miles, encompassing SpaceX’s launch facility and company-owned land. A near-unanimous vote by residents, who were mostly SpaceX employees, led to its incorporation. SpaceX’s Vice President of Test and Launch, Bobby Peden, was elected mayor of Starbase. The new Texas city also has two SpaceX employees as commissioners. All Starbase officials will serve two-year terms unless extended to four by voters.

As the new city takes shape, SpaceX is preparing for the Starship Flight 9 launch, which is tentatively scheduled for May 27, 2025, at 6:30 PM CDT from Starbase, Texas.

SpaceX secured Federal Aviation Administration (FAA) approval for up to 25 annual Starship and Super Heavy launches from the site. However, the FAA emphasized that “there are other licensing requirements still to be completed,” including policy, safety, and environmental reviews.

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On May 15, the FAA noted SpaceX updated its launch license for Flight 9, but added: “SpaceX may not launch until the FAA either closes the Starship Flight 8 mishap investigation or makes a return to flight determination. The FAA is reviewing the mishap report SpaceX submitted on May 14.”

Proposed Texas legislation could empower Starbase officials to close local highways and restrict Boca Chica Beach access during launches. Cameron County Judge Eddie Trevino, Jr., opposes the Texas legislation, insisting beach access remain under county control. This tension highlights the balance between SpaceX’s ambitions and local interests.

Starbase’s incorporation strengthens SpaceX’s operational base as it gears up for Starship Flight 9, a critical step in its mission to revolutionize space travel. With growing infrastructure and regulatory hurdles in focus, Starbase is poised to become a cornerstone of SpaceX’s vision, blending community development with cutting-edge aerospace innovation.

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The Boring Company accelerates Vegas Loop expansion plans

The Boring Company clears fire safety delays, paving the way to accelerating its Vegas Loop expansion plans.

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Credit: The Boring Company/X

After overcoming fire safety hurdles, the Boring Company is accelerating its Vegas Loop expansion. The project’s progress signals a transformative boost for Sin City’s transportation and tourism.

Elon Musk’s tunneling company, along with The Las Vegas Convention and Visitors Authority (LVCVA) and Clark County, resolved fire safety concerns that delayed new stations.

“It’s new. It’s taken a little time to figure out what the standard should be,” said Steve Hill, LVCVA President and CEO, during last week’s board meeting. “We’ve gotten there. We’re excited about that. We’re ready to expand further, faster, than we have.”

Last month, the company submitted permits for tunnel extensions connecting Encore to a parcel of land owned by Wynn and Caesars Palace. The three tunnels are valued at $600,000 based on country records.

Plans for a Tropicana Loop are also advancing, linking UNLV to MGM Grand, T-Mobile Arena, Allegiant Stadium, Mandalay Bay, and the upcoming Athletics’ ballpark. Downtown extensions from the convention center to the Strat, Fremont Street Experience, and Circa’s Garage Mahal are also in the permitting process.

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“Those are all in process,” Hill noted. “We’ve got machines that are available to be put in the ground. I think we’ve reached a framework for how these projects are going to work and how they’ll be permitted from a safety standpoint, as well as a building standpoint.”

The Boring Company has six boring machines, with three currently active in Las Vegas. Last week, TBC announced that it successfully mined continuously in a Zero-People-in-Tunnel (ZPIT) configuration, enabling it to build more tunnels faster, safer, and at a more affordable rate.

Tunneling under Paradise Road is underway as The Boring Company works on the University Center Loop. The University Center Loop is expected to connect to the Las Vegas Convention Center within two months, linking to the Westgate tunnel. The full Vegas Loop will span 104 stations and 68 miles. Even though The Boring Company’s tunnel network in Las Vegas isn’t nearly finished, it has already become a key attraction in the city.

“It’s such a great attraction for shows that are looking at this building (convention center) and we’re going to be connected to everybody in town,” Hill said. “It’s a real difference-maker.”

A few Vegas Loop stations are already operational, including those connected to Resorts World, Westgate, Encore, and all the Las Vegas Convention Center Loop stations. The Downtown Loop, which connects to the downtown area, and the Riviera Station, the hub that leads to Resorts World with Westgate destinations, are also operational.

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As The Boring Company accelerates the Vegas Loop, its tunnels are poised to redefine mobility and tourism in Las Vegas, blending cutting-edge technology with practical urban solutions.

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