SpaceX
SpaceX’s Crew Dragon one step closer to human spaceflight after flawless launch
SpaceX has completed the first half of its critical Crew Dragon test flight, launching the brand new spacecraft into low Earth orbit (LEO) on the back of one of its workhorse Falcon 9 rockets. The rocket performed nominally, successfully sending the human-rated vehicle on its way towards the International Space Station (ISS).
Scheduled to dock with the ISS as early as 6 am EST (13:00 UTC) March 3rd, Crew Dragon will now face the real challenge of this demonstration mission, successfully operating in orbit and autonomously docking with the ISS. Along the way, SpaceX will be flight-testing a number of technologies and systems new to the company, while also providing reams of data that will help both SpaceX and NASA determine whether Crew Dragon performed as intended and is truly ready to carry astronauts into orbit.
https://twitter.com/_TomCross_/status/1101764440800878593
While this successful launch is a critical milestone for DM-1, Crew Dragon, SpaceX, and NASA, it’s hard to say there is anything particularly shocking about its successful completion. Including this launch, SpaceX has now successfully launched Falcon 9 42 times in a row since January 2017, including seven orbital launches and ISS missions with Cargo Dragon, a heavily proven spacecraft with 16 successful missions since its 2012 debut. Put simply, SpaceX has an incredibly dense volume of experience successfully launching, landing, recovering, and refurbishing orbital-class rockets and spacecraft, as well as a proven track record of success and an ability to confront and move past challenging vehicle failures.
Crew Dragon demo mission (DM-1) is set to launch early tomorrow morning, March 2, at 2:49 a.m. EST from Kennedy Space Center. What an absolutely breathtaking scene at LC-39A. #spacex #nasa #CrewDragon #falcon9 pic.twitter.com/T95wCumGzq
— Pauline Acalin (@w00ki33) March 1, 2019
Crew Dragon’s successful launch is no less of a major achievement, even if it was about as much of a known quantity as any other Falcon 9 mission. The real challenge ahead of the spacecraft is successfully demonstrating the efficacy of its design and operations in space, particularly while interacting and docking with the ISS. Prior to tomorrow morning, all SpaceX Dragons have berthed with the ISS, meaning that they effectively come up from underneath the ISS (a lower orbit), stop a few meters away, and are ‘grappled’ by a large robotic arm (known as Canadarm2) that also attaches the spacecraft to a docking port. If – at any point during the pre-berthing approach – Cargo Dragon were to lose control, the spacecraft would essentially fall back down the gravitational hill it had just climbed, a built-in abort that would nominally prevent the spacecraft from impacting the Station in most failure scenarios.
The launch of Crew Dragon demo (DM-1) as seen from the roof of NASA’s Vehicle Assembly Building. What a powerful and moving mission. Another step closer! #spacex #nasa #CrewDragon pic.twitter.com/aWIPtDcVir
— Pauline Acalin (@w00ki33) March 2, 2019
Crew Dragon, on the other hand, has been designed to dock with the ISS. Generally speaking, this means that the spacecraft will approach the Station side-on, as if it were a car accelerating faster than another car in the same ‘lane’. While there are many built-in points during the docking approach where Crew Dragon will halt all forward movement, the differing docking approach means that any loss of control or contact while on a vector towards the ISS could mean that it is unable to abort, significantly increasing the likelihood of an impact event in worst-case scenarios. While Crew Dragon is designed with extreme redundancy and fault-tolerance in mind, the stakes are definitively higher compared to Cargo Dragon.
Liftoff of Dragon 2 at 2:49am! SpaceX’s first flight of their new capsule preparing to take astronauts back to the International Space Station from American soil.
See the full launch gallery and support NASAspaceflight by subscribing to L2: https://t.co/whUFQd0FNU pic.twitter.com/TIhJxCSM8j
— Brady Kenniston (@TheFavoritist) March 2, 2019
Conscious of this fact, the new spacecraft will be tasked with completing a significant number of on-orbit maneuvers to verify nominal performance before allowing the autonomous vehicle to attempt a docking with the ISS. While that docking attempt is scheduled to occur as early as 6 am EST (13:00 UTC), live coverage – hosted by both NASA and SpaceX – will begin around 3:30 am EST (10:30 UTC) on Sunday, March 3rd. While these on-orbit webcasts can admittedly be rather dry compared to the thrill of launch, it will arguably be the most significant and mission-critical portion of Crew Dragon’s launch debut, alongside the spacecraft’s safe reentry and Atlantic Ocean landing and recovery. Follow along live at spacex.com/webcast.
Check out Teslarati’s newsletters for prompt updates, on-the-ground perspectives, and unique glimpses of SpaceX’s rocket launch and recovery processes!
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.








