News
SpaceX’s next step towards airplane-like Falcon 9 reusability expected in 2018
Speaking at an impromptu IAC 2018 talk, Vice President of Build and Flight Reliability Hans Koenigsmann confirmed earlier this month that SpaceX is aiming to conduct its first triple reuse of a Falcon 9 booster before the year is out.
While not entirely confident on the specific mission it would end up flying on, Koenigsmann floated the company’s next Vandenberg, CA launch – Spaceflight Industry’s SSO-A rideshare – as a prime candidate, tentatively targeting November 19th.
As of November 19th, only two Falcon 9 Block 5 boosters will be candidates for a third reuse – B1046 and B1048. Falcon 9 B1048 launched for the second time just days ago, placing Earth observation satellite SAOCOM 1A in orbit before performing the first return-to-launch-site (RTLS) recovery on the West Coast, also marking the debut of SpaceX’s long-dormant LZ-4 landing zone. Aside from playing a role in one of the most spectacular launch-related light shows ever created, B1048 is noteworthy for being SpaceX’s second-fastest Falcon 9 booster turnaround, taking just 74 days to go from its first launch and landing to its second operational use.
While B1046 – launched first on May 11th and again on August 7th – will have had more than three months of potential refurbishment by SSO-A’s Nov. 19 launch target, both of its two launches involved relatively high-energy profiles with heavy payloads, resulting in higher (and thus more damaging) heating during reentry. B1048, on the other hand, has launched a heavy set of 10 Iridium NEXT satellites into a low-energy orbit and then launched the much lighter SAOCOM 1A spacecraft into an equally low orbit, translating to much more forgiving reentries and thus much easier refurbishment.
Later at IAC 2018, Hans spoke in more detail about the leading challenges facing SpaceX in this relatively mature stage of reusable rocketry optimization. Most notably, he seemed to imply that the most difficult aspect of refurbishing Falcon 9 boosters was damage caused to its nine Merlin 1D engines while taking the brunt of Falcon 9’s reentry inertia, not hugely surprising given the awkward geometry and sheer force behind a booster traveling more than 2000 meters per second.
-
- Falcon 9 Block 5 completed its first launch on May 11, carrying the Bangabandhu-1 communications satellite to geostationary transfer orbit. (Tom Cross)
-
- It’s currently unclear whether B1046 or B1048 will become the first SpaceX rocket to fly three times. (Tom Cross)
-
- Falcon 9 B1048 returned to Port of Los Angeles aboard drone ship Just Read The Instructions after its first launch. July 27. (Pauline Acalin)
-
- Falcon 9 B1048.2 landed at LZ-4 after its second successful launch. (SpaceX)
-->It’s possible that SpaceX will set B1046 up as the pathfinder for all future reusability milestones, including the 3rd, 4th, and 5th booster flights and beyond. However, B1048 may well be in better condition, is already directly stationed at its refurbishment facility, and will have another relatively low-energy launch ahead of it if assigned to SSO-A. Critically, flying for the third time on SSO-A – as few as 43 days after its second orbital launch – will require B1048 to break SpaceX’s record for faster Falcon 9 booster turnaround by more than 50%, despite the fact that it would have two full operational missions under its belt.
It may sound more mundane than other crowning SpaceX achievements, particularly with the focus on numbers that might seem arbitrary and unimportant at first glance, but it’s actually difficult to overstate just how important the third reuse of a Falcon 9 booster is, particularly if that pathfinder happens to break refurbishment records at the same time.
SpaceX’s ultimate goal is to build and launch rockets with airplane-like reusability and reliability, eventually flying boosters and other components upwards of 100-1000 times each, and the jump from two flights per core to three will be the best evidence yet that the company is making rapid progress in that direction.
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
Tesla Semi factory looks almost complete during Thanksgiving weekend
Based on recent drone videos, the Tesla Semi factory looks practically ready to start operations.
It appears that the Tesla Semi factory near Giga Nevada is already hard at work preparing for the initial production of the Class 8 all-electric truck. This was, at least, hinted at in a recent drone flyover of the facility from a longtime watcher.
The Tesla Semi factory after Thanksgiving
Drone operator and Tesla Semi advocate @HinrichsZane recently shared some footage he captured of the upcoming facility during the Thanksgiving weekend. Based on his video, it appears that Tesla gave its employees in the area the weekend off. One thing is evident from the video, however, and that is the fact that the Tesla Semi factory looks practically ready to start operations.
The Tesla Semi watcher did point out that the electric vehicle maker is still busy bringing in production equipment into the facility itself. Once these are installed, it would not be surprising if initial production of the Tesla Semi begins.
A new Tesla Semi
The upcoming completion of the Tesla Semi factory near Gigafactory Nevada seems all but inevitable in the coming months. What would be especially interesting, however, would be the vehicles that would be produced on the site. During Elon Musk’s presentation at the 2025 Annual Shareholder Meeting, a glimpse of the production Tesla Semi was shown, and it looks quite a bit different than the Class 8 all-electric truck’s classic appearance.
As could be seen in the graphic from the CEO’s presentation, the updated Tesla Semi will feature slim lightbar headlights similar to the new Tesla Model Y, Cybertruck, and the Cybercab. Tesla also teased a number of aerodynamic improvements that increased the truck’s efficiency to 1.7 kWh per mile. Extended camera units, seemingly for FSD, could also be seen in the graphic.
-->News
Tesla scores major hire as Apple scientist moves to Optimus team
Chen, who advanced from individual contributor to technical lead during his time at Apple, noted that he was blown away by Tesla’s efforts and synergy.
Former Apple research scientist Yilun Chen has left the tech giant to join Tesla’s Optimus AI team. Chen, who advanced from individual contributor to technical lead during his time at Apple, noted that he was blown away by Tesla’s efforts and synergy.
Apple veteran closes a major chapter
In a farewell note, Yilun Chen reflected on his tenure at Apple as a period defined by rapid growth and exposure to notable internal projects, some of which remain unreleased. His roles spanned engineering, research, early product incubation, and hands-on prototyping, allowing him to build expertise across both mature and emerging teams.
Chen credited mentors, colleagues, and cross-functional collaborators for shaping his trajectory, calling the experience unforgettable and emphasizing how each team taught him different lessons about scaling technology, guiding product vision, and navigating fast-moving research environments. “Each role has offered me invaluable unique lessons… My deepest gratitude goes to my colleagues, mentors and friends,” he wrote.
Tesla’s Optimus lab secured the hire
Chen said the move to Tesla was driven by the momentum surrounding Optimus, a humanoid robot powered by LLM-driven reasoning and Physical AI. After visiting Tesla’s Optimus lab, he admitted that he was “totally blown away by the scale and sophistication of the Optimus lab and deep dedication of people when I got to visit the office.”
His first week at Tesla, he noted, involved spontaneous deep-tech discussions, a flat team structure, rapid prototyping cycles, and what he called a “crazy ideas with super-fast iterations” culture. Chen emphasized that the team’s ambition, as well as its belief that humanoid robots are now within reach, creates an energy level that feels aimed at changing the world.
-->“You can feel the energy to change the world here,” he wrote in a post on social media.
Elon Musk
Elon Musk gives nod to SpaceX’s massive, previously impossible feat
It was the booster’s 30th flight, a scenario that seemed impossible before SpaceX became a dominant force in spaceflight.
Elon Musk gave a nod to one of SpaceX’s most underrated feats today. Following the successful launch of the Transporter-15 mission, SpaceX seamlessly landed another Falcon 9 booster on a droneship in the middle of the ocean.
It was the booster’s 30th flight, a scenario that seemed impossible before SpaceX became a dominant force in spaceflight.
Elon Musk celebrates a veteran Falcon 9 booster’s feat
SpaceX completed another major milestone for its Smallsat Rideshare program on Friday, successfully launching and deploying 140 spacecraft aboard a Falcon 9 from Vandenberg Space Force Base. The mission, known as Transporter-15, lifted off two days later than planned after a scrub attributed to a ground systems issue, according to SpaceFlight Now. SpaceX confirmed that all payloads designed to separate from the rocket were deployed as planned.
The Falcon 9 used for this flight was booster B1071, one of SpaceX’s most heavily flown rockets. With its 30th mission completed, it becomes the second booster in SpaceX’s fleet to reach that milestone. B1071’s manifest includes five National Reconnaissance Office missions, NASA’s SWOT satellite, and several previous rideshare deployments, among others. Elon Musk celebrated the milestone on X, writing “30 flights of the same rocket!” in his post.
Skeptics once dismissed reusability as unfeasible
While rocket landings are routine for SpaceX today, that was not always the case. Industry veterans previously questioned whether reusable rockets could ever achieve meaningful cost savings or operational reliability, often citing the Space Shuttle’s partial reusability as evidence of failure.
-->In 2016, Orbital ATK’s Ben Goldberg argued during a panel that even if rockets could be reusable, they do not make a lot of sense. He took issue with Elon Musk’s claims at the time, Ars Technica reported, particularly when the SpaceX founder stated that fuel costs account for just a fraction of launch costs.
Goldberg noted that at most, studies showed only a 30% cost reduction for low-Earth orbit missions by using a reusable rocket. “You’re not going to get 100-fold. These numbers aren’t going to change by an order of magnitude. They’re just not. That’s the state of where we are today,” he said.
Former NASA official Dan Dumbacher, who oversaw the Space Launch System, expressed similar doubts in 2014, implying that if NASA couldn’t make full reusability viable, private firms like SpaceX faced steep odds.
Tesla Semi factory looks almost complete during Thanksgiving weekend
Tesla scores major hire as Apple scientist moves to Optimus team
