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SpaceX aims for a burst of December launches despite recent delays
Originally scheduled to launch on December 4, SpaceX’s thirteenth resupply mission to the International Space Station (ISS) has been pushed back to no earlier than Friday, December 15 after routine preflight checks identified potential contaminants in the Falcon 9 launch vehicle’s upper stage fuel lines.
The past six weeks have been something of an outlier in an otherwise relentless series of 2017 launches for SpaceX. In early November, defects in payload fairings were discovered at the company’s Hawthorne, CA factory and quickly traced to the Zuma mission’s fairing, at that point already vertical and prepared to launch from Kennedy Space Center. SpaceX chose to pause its launch indefinitely as it investigated the fairings already delivered to its several launch pads and began the process of either repairing or replacing those impacted. The CRS-13 Cargo Dragon mission soon took precedent as Zuma remained on hold.
A panorama of SpaceX’s newly-reactivated Launch Complex 40. Falcon 9 and Dragon can be seen in the center. (Tom Cross/Teslarati)
Although CRS-13 does not require a payload fairing and was thus unaffected by SpaceX’s ongoing investigation, the mission was scheduled to be launched from Launch Complex-40, essentially a new pad after ten months of extensive repairs and upgrades. This translated into a few days of additional delays as the SpaceX launch crew thoroughly tested the pad’s new systems and pushed towards static fire of the flight proven Falcon 9 booster, successfully completed on December 6 after an additional handful of days of pad-related delays. This pushed the launch date from the 4th to the 8th, then the 12th and the 13th to accommodate further limited testing in order to ensure pad readiness. However, routine tests revealed a possible fuel line contamination in Falcon 9’s second stage, and SpaceX delayed the mission an additional 48 hours to resolve the problem. CRS-13 is now aiming for launch no earlier than 7:35am/10:35am PST/EST on December 15, but the window is instantaneous and any additional delays would push the launch into late December, at which point Cape Canaveral Air Force Station returns to operational status with the conclusion of winter holidays.
Although LC-40 suffered through its own teething period of bugs and testing while returning to life, there is a certain irony in the fact that a bug in the only wholly new component of CRS-13’s Falcon 9 rocket has been the most recent cause of delay; both the Falcon 9 booster and Cargo Dragon capsule are refurbished, flight-proven hardware, although both the trunk and heat shield of the Dragon were likely replaced with new components. There is something to be said about the logical nature of truly “flight-proven” hardware being more trustworthy than completely new alternatives, but it is far more likely that the upper stage contamination can be largely traced back to the new pad hardware.
A refurbished Dragon perched upon its flight-proven Falcon 9 first stage, separated by the uncooperative second stage. (Tom Cross/Teslarati)
Although Teslarati’s launch photographer Tom Cross has been battered about by Zuma and CRS-13 delays, SpaceX has demonstrated an admirable level of patience and caution, risking significant delays to their launch manifest in order to best ensure the safety and reliability of their launch services. While delays are painful in the spaceflight fan business, they are impermanent and secondary to safety and success. SpaceX will undoubtedly return to their regular programming in no time at all, with the West-coast launch of Iridium-4 and first pad rollout of Falcon Heavy up next on the docket. Stay tuned!
Elon Musk
Elon Musk handed Grok something no other AI company can get their hands on
Elon Musk says SpaceX will feed engineering data into Grok’s next model, avoiding restricted material.
Elon Musk said Tuesday that SpaceX will feed its internal engineering data into the next major training run for Grok, the AI model now folded into SpaceX following February’s merger. In a post on X, Musk wrote that SpaceX’s “massive corpus of world-class engineering data,” excluding anything restricted under U.S. arms export law, will be added during supplemental training of what he called the “2T run,” a reference to a roughly two trillion parameter model that would nearly double the parameters behind the latest Grok 4.5 that’s rolling out.
SpaceX’s massive corpus of world-class engineering data (excluding material blocked by ITAR) will be added during supplemental training of the 2T run.
This will dramatically improve Grok’s engineering capabilities. https://t.co/BbQEViFByn
— Elon Musk (@elonmusk) July 21, 2026
The excluded material that Musk is referring to would fall under the International Traffic in Arms Regulations (ITAR), which restricts export of technical data tied to defense and space hardware. That likely rules out propulsion specifics for Merlin and Raptor engines along with guidance and control details for SpaceX’s launch vehicles, but leaves manufacturing knowledge, materials science, and Starlink hardware design on the table.
The announcement extends a pattern that has been building since SpaceX’s Nasdaq debut in June, when the company went public with Grok and xAI’s Colossus supercomputer folded into the pitch to investors.
Days after that listing, SpaceX closed its $60 billion all stock acquisition of coding startup Cursor, giving xAI both enterprise software distribution and a stream of real world developer data to train on. Grok 4.5 launched July 8 running partly on that Cursor training data, with Musk describing it as roughly comparable to Anthropic’s Opus 4.7 but faster and cheaper to run.
Feeding SpaceX’s own engineering data into the next AI model follows the same logic Musk has applied across xAI’s sister companies. Tesla supplies real world driving data and manufacturing expertise, X supplies conversational data, and now SpaceX supplies aerospace engineering data built up since 2002.
Musk did not give a release date for the upcoming AI model, referred to elsewhere as Grok 4.6. He has said the two trillion parameter run is in its final training phase and expected to wrap this week.
Tesla has extended its Bay Area ride-hailing service to include pickups and drop-offs at San Francisco International Airport (SFO). The update, shared via the company’s official channels on July 21, allows users in the region to request rides directly to and from one of California’s busiest airports.
The expansion builds on Tesla’s secured limousine permit for SFO operations. Public records show the permit became effective March 20, 2026, and remains active through January 31, 2027. Tesla vehicles operating the service now display authorized limousine permits issued by the City and County of San Francisco.
Our Bay Area rideshare service now goes to SFO ✈️
— Tesla AI (@Tesla_AI) July 21, 2026
Tesla’s ride-hailing program in California relies on Model Y vehicles equipped with Full Self-Driving (Supervised) technology. Human safety drivers remain present in compliance with state regulations, distinguishing the service from fully driverless operations.
The Bay Area geofence covers a broad area spanning north of San Francisco to south of San Jose, offering extensive connectivity across the region.
UPDATE: Elon Musk reveals why Tesla didn’t say ‘Robotaxi’ upon California launch
This SFO addition follows earlier progress at other Bay Area airports. Tesla previously expanded service to San Jose Mineta International Airport (SJC) in late 2025. The company had engaged with SFO, SJC, and Oakland International Airport officials as early as September 2025 to secure necessary approvals for passenger transport.
The service provides a new option for travelers seeking electric, app-based transportation integrated with Tesla’s ecosystem. Rides are booked through Tesla’s dedicated ride-hailing application, which handles matching, routing, and payments. Pricing follows standard ride-hailing models, with potential adjustments based on distance, time, and demand.
Tesla’s California ride-hailing program launched in July 2025 with an initial invite-only rollout in the Bay Area. It started alongside operations in Austin, Texas, marking the company’s second major U.S. market.
The Bay Area remains a primary focus in California, with service centered on high-demand corridors connecting residential, commercial, and now major transportation hubs. This latest airport integration represents a practical step in Tesla’s broader mobility ambitions within the state.
Tesla has officially revealed its 2026 Summer Update, which comes with a variety of crazy new features, including Navigation fixes that owners have been wanting for months.
Tesla routinely releases a larger update with the Spring, Summer, Fall, and Winter updates, where it ships a variety of new features, bug fixes, and other additions to customer cars.
The 2026 Spring Update featured things like “Hey Grok” voice assistance, a redesigned self-driving app, Unreal Engine visual upgrades, and more.
🚨 TESLA’S SUMMER UPDATE FOR 2026 IS HERE:
Featuring:
✅ Self-Driving Stats in Mobile App
✅ Caraoke with Scoring
✅ Automatic Navigation
✅ Preferred Routes
✅ Set Arrival Energy from Mobile App
✅ Send Custom Wraps from Mobile App
✅ Rear Display Lock
✅ Other Improvements
🔌… https://t.co/C9IW3egEhH— TESLARATI (@Teslarati) July 21, 2026
Tesla’s Summer Release has about ten new features; we’ll show you each and detail them below:
New Grok Voice Commands
“Grok can now make phone calls, search and play music, adjust climate, open the glovebox, and answer questions about your Tesla.”
Self-Driving Stats in Mobile App
“View and share self-driving stats from the mobile app.”
Caraoke With Scoring
“Caraoke now scores your singing while in Park. High scores are saved to your Tesla profile.”
Automatic Navigation
“Automatic Navigation now adapts to your routine.
In addition to Home, Work, and upcoming calendar events, your vehicle can now suggest and route to places you visit regularly – like a school drop-off on the way to work, or the gym on the way home.”
Preferred Routes
“For a more personalized experience, navigation now prioritizes routes that you’ve taken before”
Set Arrival Energy from Mobile App
“Set your desired Arrival Energy from your phone.”
Send Custom Wraps from Mobile App
“Skip the USB drive and upload a custom wrap of your car from the mobile app. Instructions for creating a custom wrap here: https://github.com/teslamotors/custom-wraps.”
Rear Display Lock
“Kids can watch content on the rear screen, but only the front row can control it through the rear screen app.”
Other Improvements
- Find Superchargers by name when searching for a destination
- Add Apple Music songs to queue from search and artist page
- Set your preferred zoom level for the Self-Driving visualization
- Intro animations for new Model 3 and Y
Elon Musk handed Grok something no other AI company can get their hands on
Tesla expands ridesharing service in California to new hotspot
