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Elon Musk reveals SpaceX Falcon 9 survived a water landing test
Following the picture-perfect launch of GovSat-1 on Wednesday afternoon, SpaceX CEO Elon Musk took to Twitter with an extremely unusual bit of news. After separating from the second stage, events relating to Falcon 9’s first stage recovery operations were heard live in the background of SpaceX’s live coverage, leading to some additional intrigue around an already odd situation.
B1032, a flight-proven (reused) booster tasked with launching GovSat-1 on its second mission, was seen with landing legs and grid fins on its sooty exterior – a confusing appearance due to SpaceX’s statement that the core would be expended into the ocean after launch. Thankfully, Elon Musk’s tweets provide at least the beginning of an answer for the several oddities.
This rocket was meant to test very high retrothrust landing in water so it didn’t hurt the droneship, but amazingly it has survived. We will try to tow it back to shore. pic.twitter.com/hipmgdnq16
— Elon Musk (@elonmusk) January 31, 2018
As stated above, GovSat-1’s Falcon 9 booster (1032) was apparently being used to test an exceptionally aggressive landing burn in lieu of a drone ship beneath it. The lack of drone ship begins to make more sense with the added knowledge that 1032 was testing experimental landing procedures: in the relatively likely eventuality that something went wrong, the massive booster would have likely impacted Of Course I Still Love You at an extremely high velocity. Similar impacts have occurred before as SpaceX gradually perfected the new technologies and operational knowledge necessary to recover orbital-class rockets, but a basic understanding of rocketry implies that 1032’s OCISLY impact would have been uniquely destructive, likely taking the ship out of action for at least several weeks of repairs.
This would pose an inherent problem for the imminent launch of Falcon Heavy, with the center of three first stages currently scheduled to attempt a landing aboard the very same drone ship in less than a week. Under optimum conditions (sans huge explosions and general destruction), OCISLY and its entourage of support vessels simply could not complete the journey back to Port Canaveral and the subsequent return to sea that would have been necessary to recovery both GovSat-1 and Falcon Heavy’s center core. Add in the potential need for repairs and expending GovSat-1 was a no-brainer for the launch company: Falcon Heavy’s center core could easily see at least one additional launch after it is recovered, whereas the twice-used 1032 effectively reached the end of its useful life after it separated from the second stage and GovSat payload earlier today.
Falcon 9 1038 aboard Just Read The Instructions after the launch of Formosat-5. (SpaceX)
As a result, SpaceX appears to have continued a trend of exploiting flight test opportunities to the greatest extent practicable by tasking B1032 with an experimental landing attempt. More specifically, Elon quickly added that the landing burn attempted by 1032 involved the ignition of three of the booster’s nine Merlin 1D engines during landing, whereas all SpaceX landings up to this point have occurred with a single Merlin 1D ignition. While the company already routinely utilizes three engines during some boostback and reentry burns, landing burns have always featured a single engine. However, by using three engines, it is entirely possible that SpaceX hopes to eventually move towards even more aggressive landing burns. While the obvious downsides likely include difficulty maintaining control and increased stresses on the booster, the benefits are also pretty inherent. By using more engines, the length of the landing burn could be drastically shortened, resulting in far more efficient propellant usage by minimizing losses to gravity (every second the rocket is trying to go upwards is a second fighting against Earth’s gravity, which pulls the rocket down at ~9.8 meters/second squared).
Incredibly, the booster somehow managed to pull off that three engine landing burn with some success, made apparent by the fact that it is intact and floating in the Atlantic, with some hope of being towed back to land. This is almost certainly the first time SpaceX has ever successfully landed a booster in the ocean without a subsequent breakup, an incredible achievement for a rocket that likely experienced exceptional stresses during reentry and landing. Time will tell how this impacts SpaceX’s future recovery efforts, but it is certainly promising as a method of extracting just a little extra performance from reusable Falcon 9s. In other words, future Falcon 9 missions might be able to carry heavier payloads into higher orbits while still being able to land at sea or even on land. Exciting times!
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
