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SpaceX President breaks silence on rumored Zuma mission failure
After some 24 hours of total silence from all parties involved, dubious rumors began to trickle out on the afternoon of January 8 suggesting that SpaceX’s launch of Northrop Grumman’s highly secretive Zuma payload had somehow failed. Without hesitation, otherwise reputable outlets like CNBC and the Wall Street Journal immediately published separate articles claiming that lawmakers had been updated about the mission and told that the satellite had been destroyed while reentering Earth’s atmosphere. Having completely failed to both make it to orbit and “perfectly” separate from SpaceX’s Falcon 9 second stage, these articles implicitly placed the blame on SpaceX.
Claims of Zuma’s failure to properly separate from the second stage of the rocket led immediately to suggestions that SpaceX was at fault. The satellite’s manufacturer, Northrop Grumman, also refused to comment due to the classified nature of the mission, and the company may well have had their hands tied by requirements of secrecy from their customer(s). Immediately following these quick revelations, SpaceX was understandably bombarded with requests for comment by the media and furnished a response that further acknowledged the off-limits secrecy of the mission. However, SpaceX also stated that the company’s available data showed that Falcon 9 completed the mission without fault.

Falcon 9 1043 and its Zuma payload are ready for launch once again, this time from the brand-new LC-40 pad. (Tom Cross/Teslarati)
Without any background knowledge of spaceflight, this flurry of reporting and corporate comments would seem to be perfectly reasonable and unsurprising. However, the barest application of simple logic and orbital mechanics (what is actually involved in launching satellites to orbit) would have almost completely invalidated the information purportedly given to them.
Around the same time as claims of complete failure and satellite reentry were published, amateur spy satellite trackers had already begun the routine task of tracking and cataloging Zuma’s launch and orbit. Following Ars Technica’s breaking (and thankfully even-keeled) article on whispers of failure, reputable journalist Peter B. de Selding corroborated the rumors with reports that Zuma could be dead in orbit after separation from SpaceX’s upper stage. These facts alone ought to have stopped dead any speculation that Zuma had reentered while still attached to the Falcon 9 upper stage, and this was strengthened further by Dr. Marco Langbroek, who later published images provided to him that with very little doubt showed the second stage in a relatively stable orbit similar to the orbit that might be expected after a nominal launch.
This is the image taken by Dutch pilot Peter Horstink, from his aircraft over Khartoum near 3:15 UT, 2h 15m after launch.
This is probably the Falcon 9 venting fuel.#Zuma pic.twitter.com/EEsl7e1sQP— Dr Marco Langbroek (@Marco_Langbroek) January 8, 2018
Further complicating claims that the satellite failed to separate, Northrop Grumman had explicitly required that they be allowed to furnish the payload adapter for the Zuma mission, meaning that SpaceX was not responsible for connecting the satellite to the second stage, nor separating it after launch. In other words, if the satellite failed to separate, it would appear that SpaceX could not be easily blamed. However, regardless of these facts, SpaceX’s COO Gwynne Shotwell issued a thoroughly blunt and explicit statement earlier this morning, January 9. In no simple terms, she pegged rumors implicating SpaceX as the source of failure as “categorically false.” More importantly, she reiterated the simple facts that Falcon Heavy’s static fire and launch campaign were proceeding apace, and further stated that an upcoming launch of a communications satellite for SES and the Luxembourg government was also proceeding nominally for a launch around the end of January.

[Source: Chris G via Twitter]
Quite simply, if SpaceX’s hardware had suffered any form of anomaly, let alone issues serious enough to destroy a customer’s payload, all future launches would be immediately and indefinitely postponed, and all customers would be simultaneously notified of Falcon 9’s grounding. The last thing that a launch company would do in such an event is to allow a respected executive blatantly and publicly lie to the media about a long-time customer’s imminent launch date. For satellite communications companies like SES, delayed launches can cause major problems for shareholders and throw a multitude of wrenches into the fiscal gears, as delayed launches cost money on their own. They also delay the point at which any given satellite can begin to generate revenue.

A composite long exposure showing the launch, landing, and second stage burns during the Zuma mission. (Tom Cross/Teslarati)
But wait…
While current information almost unequivocally suggests that SpaceX is in the clear, there has yet to be any official confirmation that the Zuma satellite is in any way dead or has actually failed. This is par for the course of classified government launches, and Zuma’s launch campaign was even more secretive and eccentric than usual – we still have no idea what government agency or agencies are responsible for the mission. And the satellite’s manufacturer was explicitly provided only a few minutes before its launch. Any publication with experience dealing with military topics and news would explicitly understand that any ‘leaked’ information on highly classified topics is inherently untrustworthy and ought to be handled with the utmost rigor and skepticism.
In reality, the most we will ever likely know about these mysterious events will be provided in a handful of weeks by amateur satellite trackers: if they find a new object motionless in the expected orbit, leaks of Zuma’s abject failure will be largely corroborated. If nothing appears in that orbit once the satellite is expected to be visible, it can be reasonably assumed that Zuma reentered the atmosphere at some point, also hinting at a total failure. It can be said with some certainty that if Zuma failed to detach from Falcon 9’s second stage, SpaceX would delay its planned reentry indefinitely until all conceivable attempts to salvage the mission had been analyzed. Observations from pilots and people on the ground suggest without a doubt that the second stage reached a stable orbit, and once in that orbit, reentry could be delayed for weeks or months if the stage was not intentionally deorbited. Dr. Langbroek discusses these possibilities in greater detail in an article posted to his blog.
Ultimately, there are still numerous odd aspects surrounding the launch of Zuma that do not wholly mesh with publicly available information. For example, initial reports about the launch made it clear that the customer had explicitly contracted Zuma’s launch for no later or earlier than November 2017. This was delayed until January after SpaceX reportedly discovered issues with at least one Falcon 9 payload fairing, although the launch of Iridium-4 just over a month later was not delayed, and a replacement fairing was never spotted at Cape Canaveral (not that unusual). Why November 2017, and why delay the launch for nearly two months after that window was missed?
- Falcon 9 B1043 lifts off for the first time with Zuma on January 7. (Tom Cross/Teslarati)
- Falcon 9 lifts off with Zuma on January 7. (Tom Cross/Teslarati)
Of note, anonymous comments on Reddit were also corroborated by Eric Berger of Ars Technica, suggesting that Elon Musk did actually tell SpaceX employees that the launch of Zuma was possibly the most expensive and/or important contract SpaceX had yet to win. This raises a huge number of questions, as the payload was clearly small enough for Falcon 9 to return to Landing Zone-1 for recovery. This caps the mass of Zuma at about that of SpaceX’s Cargo Dragon spacecraft, indeed a fairly hefty capsule at around 10,000 kg, but still far from a satisfying explanation of its apparent value. While it seems unlikely that Zuma alone cost $1 billion or more, as many outlets have been suggesting (assuming?), it might be more reasonable to assume that the potential value of Zuma comes from future missions it might act as a proof of concept for – a highly secretive defense-related satellite constellation, in other words. This, too, slips uncomfortably far into the realm of “crazy government conspiracy theories,” but other explanations are far not forthcoming.
Sadly, the secrecy surrounding Zuma means that the general public will almost certainly remain in the dark for the indefinite future, at least until some future administration chooses to declassify it. The question of whether Zuma failed and whether that failure can be attributed to Northrop Grumman, SpaceX, or some combination of the two will nevertheless be answered imminently by delays or the lack-thereof for SpaceX’s upcoming launch manifest of Falcon Heavy, GovSat-1/SES-16, and PAZ, all scheduled within the next four weeks, give or take.
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.

