Major SpaceX customer Iridium has set an official target date for its eighth and final Iridium NEXT launch, expected to fly on a flight-proven Falcon 9 Block 5 booster as early as December 30th.
With Iridium-8 now tentatively on SpaceX’s launch manifest, the company’s West Coast schedule appears to have stabilized with two more orbital missions before the end of 2018 – Spaceflight Industry’s SSO-A rideshare mission will aim for the second half of November while Iridium-8 will likely be the last global launch of 2018 if it sticks to its December 30 target.
It’s taken awhile, but finally have a schedule for the final launch #8 of Iridium NEXT! 8:38am pst on December 30th – we’ll have the satellites, SpaceX assures us the flight proven rocket will be ready, and VAFB is ready to ring in the New Year with us! #ThePartyWillBeEpic pic.twitter.com/vQPPeSKm0P
— Matt Desch (@IridiumBoss) October 18, 2018
Iridium CEO Matt Desch was happy to offer a few additional details after tweeting Iridium-8’s targeted launch date and confirmed that – despite original estimates to the contrary – the mission would launch on flight-proven Falcon 9 booster B1049.2. He also stated that the booster would attempt to land on SpaceX drone ship Just Read The Instructions after launch, passing up a Return-to-Launch-Site (RTLS) recovery at the freshly-coronated Landing Zone 4 (LZ-4) due to the significant weight and suboptimal trajectory of Iridium’s payload.
Barring unexpectedly heavy payloads, high-energy orbits, or new launch contracts, it’s probable that Iridium-8 will be the company’s last drone ship rocket recovery on the West Coast for at least a year, if not longer. The only unknown is whether SpaceX needs to or is able to launch during harbor seal pupping season, lasting from March to June – if that environmental concern can be sidestepped or altogether avoided, there may be no reason for Just Read The Instructions to remain in California when the drone ship could instead move to Florida and immediately facilitate faster launch cadence or support Falcon Heavy missions that could benefit from multiple booster landings at sea.
- B1048 returns to port on drone ship JRTI after its successful July 2019 launch debut. (Pauline Acalin)
- It’s second landing marked the debut of SpaceX’s LZ-4 landing zone. B1048 may be a prime candidate for SpaceX’s first triple booster reuse. (SpaceX)
According to CEO Elon Musk and other executives, SpaceX is already building a third autonomous spaceport drone ship (ASDS) for the same reasons, to be named A Shortfall of Gravitas (ASOG) upon completion. Earlier this summer, Musk stated that the new vessel could be completed as early as summer of 2019, although he has since also stated that the first full BFR launches may take place on a floating platform somewhere off the coast of the US, increasing the probability of SpaceX delaying ASOG’s construction to allow for future use as both a launch and landing platform.
Probably ships next summer
— Elon Musk (@elonmusk) July 28, 2018
Triple booster reuse on the horizon
Returning to SpaceX’s Q4 2018 Vandenberg launch manifest, its launch of Spaceflight Industry’s SSO-A rideshare mission is expected to occur sometime next month and will likely be SpaceX’s second-to-last launch before the year is out. Notably, SpaceX executive Hans Koenigsmann recently suggested that SSO-A may end up playing host to the company’s first attempt to launch the same Falcon 9 booster three times. All previous Falcon 9 reuses have been the rockets’ second launches and typically saw SpaceX expend the booster in the ocean rather than recover it and attempt refurbishment for a third launch.
Falcon 9 Block 5, however, included a huge number of upgrades to the rocket’s overall stamina and reusability, theoretically raising the number of potential flights per booster from 10-100. Examined generally, moving from two to three flights per booster may seem inconsequential. The reality, however, is that the first true confirmation of the success or failure of SpaceX’s Falcon 9 Block 5 upgrade will be whether a Block 5 booster is able to safely complete three missions and do so with relative ease.

As SpaceX technicians and engineers gradually gain confidence with the new rocket iteration, debuted less than six months ago, the focus will eventually move from cautiously methodical design validation to rapid booster turnaround, eventually culminating in something approximating the 24-hour first stage reuse Musk challenged his company to achieve before 2019 is out. Ultimately, the third launch of a single Falcon 9 Block 5 booster will be the biggest step yet towards SpaceX’s ultimate goal of rapidly and affordably reusable orbital-class rockets.
For prompt updates, on-the-ground perspectives, and unique glimpses of SpaceX’s rocket recovery fleet check out our brand new LaunchPad and LandingZone newsletters!
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.

