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SpaceX prioritizes Starship test flights, pauses plans for floating launch pads

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President and COO Gwynne Shotwell says that SpaceX has temporarily abandoned plans for floating Starship launch platforms to ensure it’s fully focused on gaining flight experience with the next-generation rocket.

On February 13th, a NASASpaceflight.com forum member reported that a pair of oil rigs were scheduled to leave a Mississippi port for an unknown destination. At one point, those oil rigs – christened Deimos and Phobos after Mars’ moons – were owned by SpaceX. In mid-2020, SpaceX bought the former half-billion-dollar oil rigs for just $7 million. Around the same time, CEO Elon Musk tweeted that SpaceX was “building floating, superheavy-class spaceports for Mars, moon & hypersonic travel around Earth.”

SpaceX’s oil rig purchase was publicly uncovered in January 2021. Since then, however, the company has done very little to Phobos or Deimos. Phobos’ deck was half-cleared in fitful bursts of work, but Deimos was left almost untouched. Now, according to SpaceNews, SpaceX’s second in command says the company sold Phobos and Deimos and has paused work on offshore Starship launch platforms.

In August 2021, Musk added some additional insight, revealing that the platforms were not a priority and that the only visible work done was the result of SpaceX hiring third parties to clear Phobos’ deck. Ultimately, the project may have been a false start. Speaking in February 2023, Shotwell told reporters that while SpaceX had sold the rigs, she was still confident that “sea-based [launch] platforms” would become a crucial asset in the future.

Perhaps even exceeding CEO Elon Musk’s infamously lofty ambitions, Shotwell said that SpaceX has “designed Starship to be as much like aircraft operations as we possibly can get” in the hopes of enabling “dozens of launches a day, if not hundreds of launches a day.” No rocket family in history has launched more than 61 times in one calendar year, making Shotwell’s Starship cadence target hundreds or even thousands of times more ambitious than a 1980s rocket record that’s still standing four decades later.

It’s unclear if the FAA’s stringent environmental reviews would ever allow SpaceX to get close to that kind of launch cadence using pads built on US soil. SpaceX fought long and hard to receive approval for up to five orbital Starship launches per year out of Boca Chica, Texas. SpaceX has also received approval [PDF] for up to 24 Starship launches per year out of a NASA Kennedy Space Center pad in Cape Canaveral, Florida. And SpaceX is permitted to launch [PDF] up to 70 much smaller Falcon rockets per year from its two existing Cape Canaveral pads.

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SpaceX’s Falcon rocket family has launched 61 times in one year. (NASA)
SpaceX wants to launch Starship, a rocket almost ten times larger than Falcon 9, thousands of times per year. (SpaceX)
Giant, floating launch pads may be the only way that cadence is possible. (SpaceX)

“Dozens” to “hundreds” of Starship launches per day would be two or three orders of magnitude beyond the highest cadences the FAA has ever permitted. Shotwell’s continued interest in floating platforms is thus unsurprising, as they may be the only way SpaceX can realistically achieve airline-like Starship operations while still coexisting with US regulators.

According to SpaceNews, Shotwell said that SpaceX “really need[s] to fly [Starship] to understand it – to get to know this machine – and then we’ll figure out how we’re going to launch it.” That disciplined focus could be just the thing the Starship program needs. More than eighteen months after SpaceX first fully stacked a two-stage Starship, the rocket still hasn’t attempted an orbital launch. SpaceX has, nonetheless, put a vast amount of money and effort into building, expanding, and optimizing factories and launch facilities for Starship, an orbital rocket that has yet to even partially demonstrate itself.

In essence, SpaceX has made huge gambles on the assumption that a version of Starship mostly resembling what the company is building today will be highly successful, reusable, and reliable. SpaceX’s success with Falcon 9, Falcon Heavy, Dragon, and suborbital Starship testing suggests that it will ultimately be successful, in time. Nonetheless, Shotwell’s apparent desire to conduct orbital Starship launches and gather data before making major investments in new infrastructure (and, hopefully, big design changes and “optimizations”) is a welcome change of pace. Shotwell reportedly assumed oversight of Starbase and Starship in late 2022.

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 shows what Roadster drivers will see on screen before thruster activation

Tesla’s Roadster video reveals a fighter jet inspired cockpit with a 5,500 PSI thruster gauge.

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The next generation Tesla Roadster’s touchscreen, shown in Tesla’s first official look at the car’s interface. (Credit: Tesla/X)

Tesla has given future owners their clearest look yet at the cockpit of its next generation Roadster. In a 34 second video posted to X on Friday afternoon, the company walked through the car’s touchscreen with a caption: “Inspired by fighter jet cockpits, Roadster’s interface was designed around the pilot.”

The clip opens on a black screen with red graphics and a 3D wireframe of the car, which sits beside the Roadster’s squared off yoke. Tapping parts of the model brings up controls for the rear wing, including low drag and high downforce positions, along with a charging page with a charge limit bar and a small music player. A row of tabs along the bottom reads Home, Vehicle, Listen, Climate and Navigate.

Most of the video is spent in Track Mode. The dashboard shows a live circuit map, a list of session lap times, brake and motor temperatures, and pressure and temperature readouts for each tire. A setup page lets the driver pick Auto, Low Drag, High Downforce or Custom aero modes, adjust aero balance and brake balance, and switch stability and traction control off. Along the bottom, a status bar reads “Thruster · 5,500 PSI” next to a “Boost Ready” indicator.

That gauge ties the software to the hardware Tesla showed off near Waco, Texas on October 15. The Thrust and Rocket versions use cold gas thrusters fed by carbon overwrapped pressure vessels, and Tesla lists 0 to 60 mph times of under 0.9 seconds and under 0.59 seconds for them, as Teslarati detailed in its breakdown of the three Roadster configurations. The base Performance car relies on a fan and ground sealing system for grip, and the aero settings on screen match the active wings and suction setup covered in our look at how the Roadster generates downforce.

The Roadster layout is a departure from the rest of Tesla’s lineup. Instead of a map centered screen, the Roadster puts the car itself at the center of the home page, and Tesla’s Roadster page lists two smaller forward displays alongside the main touchscreen. Tesla has not said whether any of the Track Mode telemetry will make its way to the Model 3 Performance or other vehicles.

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The interface could still change before deliveries. Elon Musk said at the event that Roadster production will begin in 2028, and Tesla says the flagship Rocket version is not approved for public road use. Reservations are open with a $50,000 payment, while Thrust is listed as a limited release and Rocket is invite only.

Those who want to see the car in person will get their first chance this weekend. The Roadster goes on display in the lobby of the Petersen Automotive Museum in Los Angeles from October 24 to 27, according to Sawyer Merritt, the first time the public will be able to view it up close.

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Tesla reveals Optimus Academy, where robots teach themselves

Tesla has begun building production quality Optimus robots in Fremont and revealed its training plan.

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Concept rendering of Tesla Optimus in mass production

Tesla has started building Optimus on the high volume line it set up inside its Fremont factory, and the company says the robots coming off it are the first that meet the bar for a real product. “The bots coming off this line are the first production-quality bots that we have manufactured,” Tesla wrote in its third quarter shareholder letter, adding that it has “proven that the current manufacturing process for Optimus is suitable for a commercial product.”

The line sits in space that built the Model S and Model X until this spring. Tesla cleared the old vehicle line in 46 days, as Teslarati reported in July, to make room for robot production sized for one million units a year. On Wednesday’s earnings call, Elon Musk said most of the equipment for that capacity is already in Fremont, with output set to climb toward roughly 20,000 robots a week as the line ramps.

Musk described the ramp as a classic S curve. “The growth of Optimus is an S curve, but the initial curve is a shallow slope,” he said. The team is now refining the robot’s AI, electromechanical design, reliability and service life, and Musk expects that work to be finished by the end of next year, when Tesla plans to start delivering Optimus to outside companies for dangerous, repetitive and around the clock jobs.

The most interesting part of the call was how Tesla plans to teach the robots. Its cars send real driving data back to the AI team from millions of vehicles, but Optimus has no fleet like that yet. “A big difference with Optimus versus the cars is we don’t have this vast fleet of cars from which we can gather training data,” Musk said. Tesla’s answer is an Optimus Academy, where 10,000 to 20,000 robots will practice a wide range of tasks and feed what they learn into the next version of the model. Every unit off the Fremont line becomes a source of that training data.

Smarter hardware is on the way too. Tesla plans to put its AI5 chip into Optimus next year, and Musk said a new Optimus video should arrive within one or two months showing the robot completing tasks driven by AI rather than preprogrammed motions. He took aim at rival humanoid demos that only run scripted routines, saying those would not hold up in the real world.

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The supply chain is lining up behind the program. In September, Tesla certified Tuopu, Joyson and Sanhua as mass production partners for Optimus components. A far larger Optimus factory is also rising at Giga Texas, where drone footage from Joe Tegtmeyer showed the steel frame nearing completion, and Musk has pegged that plant’s long term target at 10 million robots a year.

Tesla executives also said Optimus production costs are trending toward the expected manufacturing cost of Cybercab, a sign the robot is being engineered for volume from the start. The hands remain the toughest piece of the design, a point Musk also made at the X Takeover event earlier this month, as Teslarati covered at the time, and that is where much of the current engineering effort is focused.

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The Starship moon landing number NASA and Elon Musk can’t agree on

Musk disputes NASA estimate of 22 Starship launches for Moon landing, predicting 6 to 8.

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Concept rendering of SpaceX Starship landing on the moon via Grok

Elon Musk is disputing a new NASA safety panel estimate of how many Starship launches it will take to put astronauts on the Moon, saying the real number will be less than half the panel’s figure.

On Thursday, NASA’s Aerospace Safety Advisory Panel held its quarterly public meeting. Panel member Charlie Precourt, a former NASA astronaut, flagged the fueling process for SpaceX’s lunar lander as a major risk for Artemis IV, the mission planned to land a crew on the Moon in 2028. “We need to keep our eyes on numerous required fuelings for the lander,” Precourt said, according to Ars Technica. “I think the last estimate is around 22 flights.”

Ars Technica’s Eric Berger posted the comment on X, and Musk replied. “That’s way too high,” Musk wrote. “Actual number will be more like 6 to 8.”

The disagreement comes down to a basic problem with sending a ship as large as Starship to the Moon. Starship burns nearly all of its propellant just reaching Earth orbit, so it cannot continue on to the Moon without stopping for a refill. SpaceX’s answer is a gas station in space. First, a Starship that works as a storage tank, called a depot, is launched into orbit. Then a series of tanker Starships launch one at a time, dock with the depot and pump their leftover propellant into it. Once the depot is full, the lunar lander version of Starship launches, docks, fills up and heads for the Moon.

Every tanker trip is its own full rocket launch, which is why the count matters. More launches mean more time, more cost and more chances for something to go wrong before astronauts ever leave Earth. Berger estimated that even if SpaceX reaches twice weekly Starship launches by the end of 2027, filling a depot at the panel’s number would still take roughly three months.

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How many tankers are needed depends mostly on how much propellant each one can carry to orbit and how much is lost along the way. Starship’s fuel and oxygen are stored at extremely cold temperatures, and some of it slowly boils off while waiting in orbit. More is lost in each transfer. NASA appears to be working from what Starship can lift today, while Musk’s range assumes a more capable rocket.

Musk has pushed back on higher counts before. In 2021, after a government document suggested 16 launches, he called that “extremely unlikely” and said eight tankers would be the most required.

Much of the answer depends on hardware SpaceX has not finished flying. As Teslarati noted earlier this year, the company plans to carry out the refueling process with its upgraded V3 Starship, and Precourt described Artemis IV as carrying “a large number of firsts.” He also praised NASA Administrator Jared Isaacman’s team for working to clear obstacles for both SpaceX and Blue Origin, whose Blue Moon lander does not rely on orbital refueling for its first mission.

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