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SpaceX, Firefly Aerospace targeting three rocket launches in two days
Update: As is a common occurrence in spaceflight, two of the three planned missions have been delayed or scrubbed. Firefly’s second Alpha launch has slipped to no earlier than (NET) September 12th after an aborted attempt on the 11th, and SpaceX’s Starlink 4-34 mission was pushed from September 11th to September 13th.
SpaceX and Firefly Aerospace are on track to attempt three orbital launches this weekend as the former continues to relentlessly assemble a constellation of Starlink internet satellites and the latter works to secure its first success.
On the heels of 40 successful Falcon 9 launches this year, SpaceX is a few days away from two more Starlink missions that will likely leave the company with more than 3000 working satellites in orbit.
Founded in 2017, 15 years after SpaceX, Firefly Aerospace is almost entirely focused on one near-term goal: the first successful launch of its Alpha rocket.
Firefly’s Alpha rocket lifted off for the first time on September 2nd, 2021. Just moments after launch, a faulty cable caused one of the Alpha first stage’s four Reaver engines to shut down, immediately dooming the attempt. The rocket inexplicably persevered, though, and managed more than two minutes of powered flight before it lost control, became a range safety risk, and was terminated.
More than a year later, Firefly believes it has solved the problems that doomed Alpha Flight 1 and is on the cusp of the rocket’s second launch attempt, which has been scheduled no earlier than (NET) 3pm PST (22:00 UTC) on Sunday, September 11th.
Recently, the second fully stacked Alpha rocket completed a wet dress rehearsal and static fire while installed on Firefly’s Vandenberg Space Force Base (VSFB) SLC-2W pad, confirming its readiness for flight. Measuring 1.8 meters (6 ft) wide and 29.5 meters (~95 ft) tall, Alpha is about half the width and height of SpaceX’s Falcon 9 workhorse, and Firefly estimates that the expendable rocket will be able to launch up to 1.17 tons (~2560 lb) to Low Earth Orbit (LEO).
That’s several times more performance per launch than competitors like Rocket Lab, Astra Space, and Virgin Orbit, but 14 times less than a partially reusable Falcon 9. At $15 million apiece, however, the rocket’s list price will be 4.5 times less than Falcon 9’s, which could be enough to create a niche for customers that want to spend a bit more to send smaller satellites exactly where they want instead of getting dropped off in the general vicinity as a rideshare payload.
Demonstrating an impressive level of transparency, Firefly will offer a public livestream of Alpha’s second flight in full awareness that it could ultimately broadcast a launch failure for the second time in a row. There are very few instances in the history of spaceflight where a new group’s new rocket successfully reached orbit on its first launch, so it’s a credit to the startup to acknowledge the reality that launch failures are a common extension of the development process, rather than something to hide from the public.
SpaceX knows that reality well. Falcon 1, its first rocket, was about half the size of Firefly’s Alpha and suffered three launch failures in two and half years before finally succeeding on its fourth attempt. More than a magnitude larger, Falcon 9 likely benefitted from SpaceX’s Falcon 1 experience and had a much smoother start to life, though it did eventually experience its own share of failures years after its 2010 debut.
12 years later, Falcon 9 is one of the most successful launch vehicles of all time, and has simultaneously pioneered the commercially viable reuse of orbital-class rockets. Currently on a historic pace of one launch every ~6.2 days in 2022, Falcon 9 recently completed its 146th successful launch in a row and 173rd successful launch overall.
Hopefully continuing those trends, Next Spaceflight reports that Falcon 9 is scheduled to launch two more batches of Starlink satellites at 9:10 pm EDT on Saturday, September 10th, and 10:53 pm EDT on Sunday, September 11th. In addition to several dozen Starlink satellites, the first mission – Starlink 4-2 – is expected to carry a relatively large 1.5-ton (~3300 lb) satellite prototype for space-to-phone communications startup AST SpaceMobile. The second mission, known as Starlink 4-34, should be a dedicated launch of another 53 or 54 Starlink satellites.
Elon Musk
Tesla gives the Roadster an official “Go for launch” demonstration date
Tesla teased an October 1 Roadster reveal, reviving years of delayed SpaceX thruster hover promises.
Tesla teased an October 1 event date for its next generation Roadster, posting an image on X Saturday that shows the car lit up like it is sitting on a launch pad, with the date “10.01” stamped across the bottom and the caption “Go for launch.” A countdown clock on Tesla’s Roadster order page now points to the same date, which falls on a Thursday. The company has not said where the event will happen or whether it will be streamed at the moment. Stay with us @Teslarati for live updates.
Go for launch pic.twitter.com/Khu03eiZ04
— Tesla (@Tesla) September 12, 2026
Tesla has since sent formal invitations to reservation holders confirming the event will take place in Waco, Texas, about 90 minutes north of its Austin headquarters, based on a digital ticket shared on X by Sawyer Merritt. Tesla did not name the exact venue, though Waco sits close to SpaceX’s McGregor, Texas, rocket test site, previously reported as the planned location for a Roadster thruster demonstration. The invite sets the reveal for 8:30 p.m. Eastern on October 1, requires RSVPs by midnight on September 16, and limits entry to guests 21 and older. Invitations are non-transferable.
The tease follows nine years of a project defined by unimaginable specs along with slipped dates. Musk first showed the second generation Roadster in November 2017 as a surprise reveal at the end of the Tesla Semi event, promising a 0 to 60 mph time under two seconds, a top speed above 250 mph, 620 miles of range from a 200 kWh battery, and production starting in 2020. At last November’s shareholder meeting, Musk set an April 1 demo date and joked the choice gave him “deniability” if it slipped again, which it did, moving first to late April, then to “a month or so,” then to August.
Tesla Roadster SpaceX Package’s 1.1-second 0-60 mph launch visualized in concept video
Whatever Tesla shows on October 1 is expected to center on the SpaceX developed thruster package Musk has described since 2018. Internally code named A71, a nod to the Lockheed SR-71 Blackbird, the system reportedly uses cold gas thrusters fed by a composite overwrapped pressure vessel, the same tank design SpaceX uses on Falcon 9. Musk has said a thruster equipped Roadster could hit 60 mph in about 1.1 seconds under roughly 2.75 g of launch force, well past the 1.9 second figure quoted for the standard car. That version reportedly will not be street legal and has reportedly been discussed as a limited run sold through a track only program.
The standard Roadster is still expected to carry the original $200,000 base price and $250,000 Founders Series tier, both set when Tesla opened $50,000 and $250,000 reservations in 2017. Tesla VP of Vehicle Engineering Lars Moravy has confirmed production will happen at Gigafactory Texas, with Musk targeting 2027 or 2028, 12 to 18 months after whatever the company demonstrates next month.
Tesla is planning to roll out some pretty significant safety and accident avoidance features with Full Self-Driving version 15, which will be the next major FSD deployment from the company.
Tesla AI lead Ashok Elluswamy used a near-miss this week to preview what the company says is the next leap in Full Self-Driving.
In response to a driver whose car had swerved away from another vehicle pulling out of a parking lot, Elluswamy wrote that he was glad the owner was safe and that “even earlier prediction of hazards, even faster reaction time and overall significantly better safety and collision avoidance” would arrive with FSD v15.
Glad you are safe. Even earlier prediction of hazards, even faster reaction time and overall significantly better safety and collision avoidance coming as part of the next big upgrade (v15).
— Ashok Elluswamy (@aelluswamy) September 11, 2026
The comment landed as Tesla continues to treat software as the primary safety upgrade path. v15 is described internally as a larger architectural step, with a much bigger neural network and tighter coupling between prediction and control.
The company has already begun using early v15 software in some robotaxi operations while rolling out safety features such as Automatic Collision Evasion into current customer cars, allowing the driving stack to intervene even when the driver is in manual control.
Tesla is rolling out a new FSD version with a massive safety addition
Tesla’s published telemetry is the backbone of its safety argument. In recent North American Vehicle Safety Report data, vehicles with FSD (Supervised) engaged traveled roughly 5.1 million to 5.7 million miles between major collisions, defined as airbag-deployment events.
Tesla’s estimate of the U.S. average over the same period is about 699,000 miles per comparable crash. That is the comparison Tesla often frames as roughly seven times fewer major collisions.
A tighter comparison uses the same Tesla fleet. Cars driven manually with active safety features such as automatic emergency braking still recorded a major collision about every 2.1 million miles. Against that baseline, FSD’s advantage shrinks to roughly 2.4 to 2.7 times fewer severe crashes, which independent researchers argue is the more apples-to-apples figure.
European data released in 2026 pointed in the same direction: Tesla reported FSD as 3.5 times safer than manual driving in the Netherlands and 4.1 times fewer collisions than manually driven Teslas with active safety across more than 100 million kilometers in five approved countries.
Those numbers do not settle every debate. NHTSA’s Standing General Order still shows Tesla accounting for the large majority of U.S. Level 2 driver-assist crash reports, in part because the fleet logs far more assisted miles than rivals. Critics also note that Tesla’s “U.S. average” mixes crash definitions and driving mix.
Even so, Tesla’s own same-car comparisons, plus lower rates of automatic emergency braking and harsh maneuvers when FSD is engaged, are the evidence Elluswamy is pointing to when he says v15 will push prediction and collision avoidance further. The claim is not that software already eliminates risk. It is that each major version is meant to widen the gap between the system and an unaided human driver.
Cybertruck
Tesla’s most delayed Cybertruck feature is finally here
Tesla finally links Cybertruck Powershare with Powerwall 3 for extended home backup after years overdue.
Tesla’s Cybertruck can now pair with a Powerwall 3 to keep a house running longer during an outage, a feature the company first promised when the truck launched in November 2023.
The official Cybertruck account posted the update on X Thursday: “Powerwall 3 & I can now power your house together. This extends your home backup by over 3 days, equivalent to 9 additional Powerwalls,” Cybertruck lead engineer Wes Morrill confirmed the rollout separately, calling it the first time a vehicle and a home battery have worked together this way. Powerwall 2 and Powerwall+ compatibility is still coming later this year, per both the Cybertruck account and Morrill.
Powerwall 3 & I can now power your house together⁰ ⁰This extends your home backup by over 3 days, equivalent to 9 additional Powerwalls pic.twitter.com/8G2twIm6AN
— Cybertruck (@cybertruck) September 10, 2026
Powershare itself is not new. Tesla enabled the version that lets Cybertruck power tools, appliances or another EV through its bed outlets when the truck launched in 2023. Home backup through a Powershare Gateway and Universal Wall Connector arrived in 2024, and Tesla extended that support to homes with solar the following year. What has been missing until now is Powershare working alongside an existing Powerwall, instead of functioning as a separate backup source competing for the same job.
The pairing matters because a single Powerwall home battery typically covers a home for about a day, less if usage is heavy or the outage stretches into a heat wave or freeze. A second Powerwall for more backup storage costs several thousand dollars installed. A Cybertruck instead uses a battery the owner already has, one large enough here to add roughly three more days of backup without mounting another unit or booking an installer visit. For households in wildfire, hurricane or winter storm regions where outages run past a day, that keeps the refrigerator and medical equipment running instead of shutting down.
The company told owners in October 2024 that Powerwall integration was coming sometime in 2025. That date passed, and in December 2025 Tesla pushed the target to mid-2026, with Morrill explaining at the time that two grid-forming devices need to negotiate which one manages a home during an outage, and that certifying the process across multiple generations of Powerwall took longer than expected.
For owners who bought Powershare hardware expecting it to work with whatever battery setup they already had, Thursday’s update closes a gap that has shown up repeatedly in owner complaints since Cybertruck deliveries began. Tesla has also rolled out a separate Powershare grid support program in Texas, letting Cybertrucks send power back to the grid during high demand events, so the truck’s role in a home’s energy setup keeps expanding even as individual pieces of it arrive later than promised.
Tesla gives the Roadster an official “Go for launch” demonstration date
Tesla plans big safety improvements for Full Self-Driving v15
