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SpaceX sends reused Falcon 9 booster west for first California Starlink launches
SpaceX has shipped the first of one or two flight-proven Falcon 9 boosters from Florida to California in the latest sign that the company is preparing to begin dedicated polar Starlink launches in the near future.
On May 27th, a Reddit post revealed a Falcon 9 booster arriving at Vandenberg Air/Space Force Base (VAFB), the home of SpaceX’s West Coast SLC-4E launch pad. Only truly useful for polar or high-inclination launches with satellites that need to orbit the Earth’s poles instead of the equator, SpaceX has only used SLC-4E twice in the last two years – once in June 2019 and most recently in November 2020.
Now, amidst a major hiring spree and rare new activity at a nearby Los Angeles port, SpaceX is clearly gearing up to return its SLC-4E launch pad to active duty.
B1049 began its career in Florida (Telstar 18V), moved to Vandenberg for its second flight (Iridium-8), went back to Florida for seven Starlink missions, and is once again returning to the best coast.— Michael Baylor (@nextspaceflight) May 27, 2021

Both recent West Coast Falcon 9 missions hosted booster landings at LZ-4, a landing zone situated a little over 1000 feet (300m) away from the launch pad. That freed up SpaceX to ship former West Coast drone ship Just Read The Instructions (JRT) across the Panama Canal in August 2019, where it ultimately joined the company’s Florida rocket recovery fleet in early 2020 to support a major launch cadence ramp.
As a partial result, SpaceX was able launch Falcon 9 26 times in 2020, beating the previous record – 21 flights – by almost a quarter. In 2021, SpaceX is well on its way to smashing that annual launch record again and has completed 16 orbital launches with seven full months left in the year. That cadence is pushing SpaceX’s launch pads, recovery ships, and booster fleet to their limits. Due to the voracious demands of SpaceX’s almost weekly launch cadence, the company would only be shipping a workhorse booster to Vandenberg if there was a pressing need for it.
Said to be Falcon 9 B1049 by Next Spaceflight and NASASpaceflight reporter Michael Baylor, the booster that arrived at Vandenberg Air Force Base on Thursday has flown nine times – two of which it completed in February and May 2021. B1049 hasn’t been the most rapidly reusable of the fleet and is the oldest Falcon booster still operational after debuting in September 2018. However, SpaceX’s SLC-4E is relatively old itself and recruiting documents distributed as recently as 2021 indicated that the company’s West Coast resurgence was targeting a maximum cadence of one launch per month.
Virtually all of those missions will carry the company’s own Starlink satellites. On Wednesday, May 26th, SpaceX completed its 28th operational East Coast Starlink launch, effectively completing the first ‘tranche’ of the constellation once the satellites already in space reach their operational orbits. In April, SpaceX COO and President Gwynne Shotwell stated that polar Starlink launches would begin not long after that 28-launch milestones.
The day before B1049 arrived, SpaceX filed the first regulatory documents for at least six Vandenberg Starlink launches between July 2021 and January 2022 – one mission per month. It’s hard to say when the first launch will come. With B1049 now on site, FCC permits in work, and a new berth lease active in Port of Long Beach, the only real piece of the equation missing is a drone ship to support polar Starlink launches. According to said FCC documents, SpaceX will continue to push Falcon 9 to its limits on the West Coast, recovering boosters 640 km (~400 mi) downrange after polar Starlink launches.
SpaceX’s two operational drone ships – OCISLY and JRTI – currently have their hands full on the East Coast. Transporting either to California will take several weeks, limiting SpaceX’s East Coast launch cadence during that period. SpaceX and its contractors are currently hard at work completing a third drone ship – A Shortfall of Gravitas (ASOG), but past experience suggests that the vessel is at least a few months away from completion.
Once a drone ship has arrived at SpaceX’s new West Coast docks, though, the company will have almost everything it needs to kick off polar Starlink launches.
Elon Musk
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.
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.
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.
Elon Musk
Tesla reveals Optimus Academy, where robots teach themselves
Tesla has begun building production quality Optimus robots in Fremont and revealed its training plan.
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.
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.
Elon Musk
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.
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.
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.