SpaceX
SpaceX fairing catcher Mr. Steven heads for Panama Canal after one last drop test
Iconic fairing recovery vessel Mr. Steven appears to have quietly departed for SpaceX’s Florida launch facilities a few days after completing (successfully or not) one final controlled fairing catch test in the Pacific Ocean.
While bittersweet for those that have closely followed the vessel’s development and many attempted Falcon fairing recoveries, this move should ultimately give Mr. Steven around three times as many opportunities to attempt fairing recoveries thanks to SpaceX’s significantly higher East Coast launch cadence.
Mr Steven docking last night after another helicopter drop test, fairing half aboard. #spacex @Teslarati pic.twitter.com/1uMm8ktzWY
— Pauline Acalin (@w00ki33) January 26, 2019
Under SpaceX lease since late 2017, the company moved the vessel to California and modified it with its first net and set of arms around December 2017. Mr. Steven attempted his first Falcon fairing catch – each half worth more than $3M – in February 2018 after the launch of Earth imaging satellite PAZ and two SpaceX Starlink prototypes, thus beginning a string of five unsuccessful recovery attempts for West Coast Falcon 9 launches. The lack of success has most certainly not been for a lack of trying, exemplified in large part by Mr. Steven’s frequent net and arm upgrades over the last year, culminating in the installation of four massive arms, a vast primary net, and a smaller secondary net below it.
Recent fairing recovery test with Mr. Steven. So close! pic.twitter.com/DFSCfBnM0Y
— SpaceX (@SpaceX) January 8, 2019
SpaceX engineers and technicians repeatedly managed to get Falcon fairing halves – autonomously guided by GPS after deploying parafoils – within 50 to a few hundred feet during several of those five post-launch attempts. In the last few months of 2018, SpaceX also began a program of controlled fairing drop tests, where a helicopter would lift a fairing half 5,000-10,000 feet up before releasing it for Mr. Steven. A recent drop test organized in either late-December or early-January saw the parasailing fairing half get so close to a successful catch that its parafoil rigging actually appeared to get tangled on (or at least bump) the edge of Mr. Steven’s net, spanning an area of around 3000 square meters (~30,000 sq ft).
Barring a continuation of SpaceX’s helicopter drop test program on the East Coast, Mr. Steven’s final controlled fairing recovery attempt occurred on January 25th, perhaps less than four days before the ship departed for Florida. After maneuvering wildly and reaching 28 mph (45 km/h) – the fastest speed yet clocked – on his trip back to port, Mr. Steven arrived with a fairing half tantalizingly cradled in the ship’s new secondary net, a perfectly ambiguous state that could indicate a successful catch and net transfer or a missed catch and ocean retrieval, with the smaller net used as an ad-hoc shock absorber during his sprint to port.
- The apparent fairing-grabbing mechanism or robot spotted aboard the SpaceX-leased vessel Mr. Steven. (Reddit /u/ vshie)
- Not nearly enough net, as it turned out. (Pauline Acalin, May 2018)
- Mr Steven testing his new net in a series of sea trials, July 11
- Mr. Steven returned to Port of San Pedro around on October 8th after a day spent at sea, apparently with a Falcon fairing half in tow. This is the second known time that a fairing has been in Mr. Steven’s net. The fairing was eventually lifted off around noon the following day. (Pauline Acalin)
- Mr. Steven was captured performing tests with a duo of fairings and nets at its Port of LA berth, January 22nd. (Pauline Acalin)
- Prior to his Panama Canal exit, Mr. Steven barely missed 2-3 successful Falcon fairing catches during several controlled drop tests. (SpaceX)
Back to Port Canaveral
Prior to Mr. Steven’s California station and arm/net upgrade, the vessel was introduced to SpaceX in Florida as a sort of faster version of the slower service vessels already used to support drone ship deployments and recover fairing halves (or shards) out of the ocean. Although it remains entirely possible that Mr. Steven’s abrupt journey towards southern Mexico is a false alarm, it appears quite likely that the vessel will ultimately end up back where it started its SpaceX journey. After returning to Port Canaveral, Mr. Steven should be able to support a range of post-launch fairing recovery attempts thanks to SpaceX’s consistently-busy East Coast launch schedule.
At his current cruising speed of ~18 knots (21 mph/35 km/h), Mr. Steven will take at least 9-10 days (~220-240 hours) to travel the ~7500 km (4600 mi) of ocean separating Port of LA and Port Canaveral. Even assuming many lengthy stops for fuel and supplies, the vessel should easily arrive in time to attempt its first East Coast fairing catch in support of SpaceX’s next launch, NET February 18th. After that, Crew Dragon’s inaugural orbital launch (DM-1) is targeted for late February, followed by Cargo Dragon’s 17th operational mission (NET March 16th) and the second-ever launch of Falcon Heavy, absolutely no earlier than March 7th.
Mr. Steven appears to have quietly departed Port of Los Angeles for Manzanillo, a port on the southwest coast of Mexico. This is likely Leg #1 of a voyage to Port Canaveral, where he can support #SpaceX's more frequent Florida launches. He'll be missed on the West Coast 🙁 pic.twitter.com/Jb5cOA2Cda
— Eric Ralph (@13ericralph31) January 29, 2019
News
Starlink is ‘biggest competitive advantage,’ but it’s temporary, United CEO says
United Airlines CEO Scott Kirby said that SpaceX’s Starlink satellite internet is its leading competitive advantage in the U.S. airline industry. However, in recent comments, while he described the service as “the biggest competitive advantage” the carrier currently holds, he also acknowledged that the edge is temporary.
“…everybody eventually is going to have high-speed low earth orbit internet connectivity. It’s going to be a must-have. We are going to have a few years of being the only airline that has it at scale, and that’s our mission,” Kirby said. Until everyone has it, United aims to capitalize on its head start by converting trial users into long-term loyal customers.
🚨 United CEO Scott Kirby calls Starlink “the biggest competitive advantage,” but says it’s temporary.
“I think it’s the biggest competitive advantage. And it’s temporary. Like it’s not, everybody eventually is going to have high speed low earth orbit internet connectivity. It’s going to be a must-have. But we are going to have a few years of being the only airline that has it at scale, and that’s our mission.”
“I think we’re going to convince customers that United is the best airline and we’re going to get customers to switch their loyalty, to get our credit card, switch their loyalty to United. Not because of Starlink. They’re going to try us for Starlink and they’re going to stay with all the other technology, and everything else is better, and the technology in particular is so much better than technology other, and it’s accelerating because we’ve got the right tech stack, and because we’re like, our gap is getting wider and wider with our technology every day.”
Next: LAX becomes United’s first 100% Starlink hub in the first half of next year, and the United app will show your Starlink odds for each flight. https://t.co/hToyFWaWj7
— TESLARATI (@Teslarati) October 27, 2026
United has moved faster than its rivals on Starlink installations. As of mid-to-late October 2026, the system was on roughly 43 percent of its fleet, with plans to reach 61 percent by year-end, 87 percent by June 2027, and full fleet coverage by the end of next year.
The airline already operates more Starlink-equipped flights than the rest of the U.S. industry combined. Los Angeles International Airport is scheduled to become United’s first 100 percent Starlink hub in the first half of 2027, and the carrier’s app will display the likelihood that any given flight has the service.
Kirby has pointed to early evidence that the offering influences booking decisions. Some passengers loyal to other airlines are already switching flights for Starlink connectivity, something the airline, along with American Airlines, has tried to leverage against competing airlines. Both companies used status-match programs, and some of those customers are pursuing company-specific credit cards, which signals an intent to stay.
Once onboard, these customers encounter the airline’s broader investments in aircraft, larger seat-back screens, oversized bins, connection tools, and a mobile app that Kirby says outperforms competitors. Wi-Fi satisfaction scores on Starlink-equipped planes have been reported to be nearly double those on aircraft with other systems.
Competitors are moving slowly to do the same. Southwest Airlines began installations in 2025 and expects to complete them soon. Delta is pursuing Amazon’s Leo system, while American expects to start Starlink work in early 2027 and has not yet detailed regional-fleet plans. This timeline gap gives United a multi-year window in which it remains the only major U.S. carrier offering Starlink at scale.
Kirby has framed the strategy as pressing that advantage while simultaneously widening gaps in other technology areas so that customers who try United for the Wi-Fi remain for the overall experience.
The approach reflects a calculated bet that superior in-flight connectivity can accelerate share gains and support longer-term financial targets, including a 10 percent pre-tax margin goal.
High-speed internet is particularly valued by premium and business travelers who can work or stream reliably. As low-Earth-orbit service becomes ubiquitous, the temporary nature of the pure connectivity edge means United’s retention will depend on whether its other product and operational improvements keep pace.
Elon Musk
How SpaceX Is raising Raptor’s sea-level thrust while holding engine mass steady
SpaceX’s Raptor engine family has steadily increased sea-level thrust while simultaneously reducing mass, turning iterative engineering gains into substantially higher performance for the Super Heavy booster. CEO Elon Musk shed more light on how powerful Raptor 4 will be, and it’s pretty crazy.
Raptor 1 delivered 185 metric tons of thrust at roughly 2,080 kilograms, while Raptor 2 raised that to 230 tons while cutting mass to about 1,630 kilograms. SpaceX data for Raptor 3 lists a target of 280 tons at 1,525 kilograms (with further reductions in associated vehicle hardware), while operational flight ratings have been cited near 250 tons.
This morning, Elon Musk stated that Raptor 4 is expected to reach 300 tons of sea-level thrust at roughly the same mass as Raptor 3. Across these versions, thrust has risen by more than 60 percent from the first engines while engine mass has fallen, producing a sharp improvement in thrust-to-weight ratio. This is a true testament to how great SpaceX engineering has been:
🚀 Elon says Raptor 4 will make 300 tons of thrust at sea level at roughly the same mass as Raptor 3.
How far Raptor has come:
Raptor 1: 185 tf, 2,080 kg
Raptor 2: 230 tf, 1,630 kg
Raptor 3: 250 tf, 1,525 kg
Raptor 4: 300 tf33 on Super Heavy = ~9,900 tf, nearly 3x Saturn V https://t.co/HQDswZhyvL
— TESLARATI (@Teslarati) October 26, 2026
With 33 engines on SuperHeavy, the jump from earlier versions to a 300-ton Raptor 4 would produce roughly 9,900 metric tons of total liftoff thrust, nearly three times the Saturn V’s approximately 3,400 metric tons from its five F-1 engines.
This is not just a larger number on a data sheet, either, as sea-level thrust is the force available the moment the vehicle leaves the pad. This is when it is heaviest and still deep in Earth’s gravity well and dense atmosphere.
Higher levels of sea-level thrust directly improves the initial thrust-to-weight ratio of the full stack. A higher ratio produces faster acceleration off the pad, which shortens the time the rocket has to spend fighting gravity, and gravity losses during the first minute or two of the flight are a major drain on total available delta-v. Every second shaved off of that early climb preserves more propellant energy for reaching orbital velocity or for carrying extra payload.
Because Super Heavy’s engine count is constrained by vehicle diameter and packing density, increasing thrust per engine is the most straightforward way to raise total liftoff performance without redesigning the booster structure or design.
The same-mass target for Raptor 4 is equally important. Holding engine mass roughly constant while raising thrust improves the engine’s own thrust-to-weight ratio and reduces the structural and propellant mass fraction that must be carried solely to support the engines.
Earlier Raptor iterations also simplified or eliminated extensive vehicle-side hardware such as heat shields. These gains compound: more force for less installed mass leaves additional capacity for propellant, payload, or operational margins such as engine-out capability.
For Starship’s architecture, the practical effects are large. Greater liftoff thrust supports heavier vehicles, larger propellant loads, and higher payloads to low Earth orbit, figures SpaceX has targeted in the 100-plus-ton reusable range. That capacity underpins orbital refueling, lunar missions, and eventual Mars cargo and crew flights.
Continued growth in sea-level thrust therefore tightens the gap between theoretical rocket performance and the high flight rates and reusability needed to make large-scale space transport practical.
News
Tesla expands Robotaxi geofence in Houston with an ode to SpaceX merger
Tesla expanded its Robotaxi geofence in Houston, Texas, today, enlarging the service area and drawing a new rocket-shaped boundary across the city’s northwestern and central parts.
Although CEO Elon Musk said it was just a coincidence, the expansion seems to be an ode to SpaceX and its potential merger with Tesla.
🚨 Tesla has just expanded its Robotaxi geofence in Houston
It looks a lot like a rocket — we all remember the shape in Austin 🤣 https://t.co/cFOPEuiJ4u
— TESLARATI (@Teslarati) October 26, 2026
The official Tesla Robotaxi account announced the change with the lines “Houston, we have liftoff” and “Bigger service area now live,” pairing them with a map overlay.
The prior white geofence, roughly 25 square miles covering Jersey Village, Harvest Bend, and the Willowbrook corridor along U.S. 290 and State Highway 249, now sits inside a larger blue zone that stretches southeast toward Bellair and closer to central Houston.
Houston’s Robotaxi service launched on April 18, 2026, the same day as Dallas, as Tesla’s first unsupervised public expansion beyond Austin. From the start, the vehicles were Model Ys running without anyone in the front seats, booked through the dedicated Tesla Robotaxi app and open to the public inside the geofence.
Trackers measured the initial zone at about 25 square miles; by late September it had not grown substantially. Community and registry data indicated a modest local fleet of unsupervised Model Ys, while dozens to nearly 200 Cybercabs, the purpose-built, steering-wheel-free two-seaters, have been spotted staging and testing in Houston lots, though public Cybercab rides remain limited to Austin for now.
Across the broader Robotaxi program, Tesla began public Robotaxi rides in Austin in June 2025, as a small geofence and vehicles with safety monitors became available for a ride-hailing service. Later on, Tesla removed the monitors and steadily expanded the service area until it covered most of the Austin metro area.
Unsupervised Robotaxi services now run in six cities: Austin, Dallas, Houston, Miami, Orlando, and Tampa. Cumulative driverless miles reported by the company have reached several million. The Cybercab entered public service in Austin in early September 2026 and has scaled rapidly there. The company has also said that Dallas is next for Cybercab rides in November, with further cities and 24/7 hours targeted by year-end, plus fleet-operator sales of the vehicle.
Waymo also operates a fully driverless service in Houston, which has been open to the public since August of this year.
The Houston expansion continues Tesla’s pattern of starting with tightly controlled validation zones before widening coverage as real-world data accumulates, while the rocket motif on the map underscores the company’s habit of injecting visual flair into its autonomy rollout.
Riders inside the new boundary can request unsupervised Model Y trips in the Robotaxi app; exact operating hours and further Cybercab availability remain subject to app updates and company statements.





