

News
SpaceX Falcon Heavy side booster arrives at Texas test facilities
NASASpaceflight.com reports that the first new booster for SpaceX’s next Falcon Heavy launch has arrived at the company’s McGregor, Texas test facilities.
The canonical sign that SpaceX is rapidly progressing towards its next Falcon Heavy launch, the mission – set to carry the US military’s US Space Force 44 (USSF-44) satellite(s) directly to geostationary orbit (GEO) – requires all new boosters. For SpaceX, barring a major surprise in the next five months, USSF-44 will be the first operational direct-to-GEO launch in the company’s history – a milestone years and multiple test flights in the making.
US military officials have begun to at least vaguely support the idea of flying payloads on flight-proven SpaceX rockets but it looks to be a long uphill battle ahead of the company. It took almost half a decade and four-dozen successful booster landings for the US Air Force to even allow SpaceX to attempt to land a Falcon 9 booster after an operational military launch. As a result, the company will likely be building new rockets for its military launches for the indefinite future – Falcon Heavy and its three boosters included.
The photo at the top of this article shows a largely identical Falcon Heavy Block 5 side booster – either B1052 or B1053 – during a late-2018 static fire acceptance test campaign in McGregor, Texas.
Based on NASASpaceflight.com’s aerial photos of the latest rocket to arrive in McGregor, Texas, one would assume that SpaceX was simply testing a new Falcon 9 first stage. Notably, the booster appears to have a Falcon 9 interstage installed, whereas Falcon Heavy side boosters have historically been tested with nosecones installed. However, by analyzing the layout of decals visible on its exterior, author Thomas Burghardt discovered that the booster – believed to be B1064 – is likely the first of two new Falcon Heavy side boosters needed for USSF-44.
For unknown reasons, SpaceX has outfitted, transported, and prepared B1064 for acceptance testing with a years-old interstage installed, effectively making it a Falcon Heavy side booster in Falcon 9 clothing (sans nosecone).
In its current configuration, the process of manufacturing three new Falcon Heavy boosters at SpaceX’s Hawthorne, CA factory takes at least half a year from the start of tank welding to shipment. After each booster is completed, it must ship to McGregor, Texas for at least 4-6 weeks to undergo acceptance tests, including at least one wet dress rehearsal (WDR) and static fire. In other words, if the first of three new Falcon Heavy Block 5 boosters has just arrived in McGregor, SpaceX likely has two or three months of work to go before the entire USSF-44 rocket is on site at Florida’s Kennedy Space Center.
Just two weeks ago, a US military official revealed that SpaceX’s USSF-44 Falcon Heavy launch date had slipped from late-2020 (likely November or December) to no earlier than (NET) February 28th, 2021. The cause of the delay is unknown but either way, it should give SpaceX two full months to process Falcon Heavy Flight 4 hardware in Florida (or several weeks of margin wherever needed). After USSF-44, SpaceX’s next Falcon Heavy launch – USSF-52; also expected to fly on all-new boosters – was scheduled to launch NET “early 2021” before the preceding mission’s delay was announced. To achieve that schedule, SpaceX will likely be building and testing new Falcon Heavy boosters – and Falcon Heavy boosters only – from mid-2020 to at least Q1 2021.
On the plus side, as NASASpaceflight.com noted, if SpaceX manages to recover all USSF-44 and USSF-52 boosters, it will quickly find itself with a fleet of six side boosters and two center cores.
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Elon Musk
Elon Musk reiterates shocking xAI detail, and hints at an upcoming monster
He also announced that xAI’s upcoming model, Grok 5, will begin training very soon.

Elon Musk has reiterated a rather shocking tidbit about xAI’s impressive scores at the ARC-AGI benchmark.
He also announced that xAI’s upcoming model, Grok 5, will begin training very soon.
xAI results on the ARC-AGI benchmark
In a recent post on social media platform X, Greg Kamradt, President of the ARC Prize Foundation, noted that Grok 4 has been used in two SOTA submissions to the ARC-AGI V1 and V2 benchmarks. The submissions, which were the best that the foundation has encountered to date, were done using xAI’s large language model, Grok 4.
As per Kamradt, when asked about why the submissions were done using Grok 4, the authors stated that “It was the best model I used in testing.” Musk was evidently proud of this accomplishment, though he also highlighted that these accomplishments were attained with just Grok 4. This suggests that once Grok 5 is in the picture, xAI’s lead in the AI sector could become notable.
Grok 5 incoming
Elon Musk has shared a number of tidbits about Grok 5 as of late. In recent comments on X, the Tesla and SpaceX CEO stated that he believes Grok 5 has the potential to actually reach artificial general intelligence (AGI). This suggests that Grok 5 would be nothing short of a monster, as it could be capable of matching or surpassing human-level intelligence across tasks such as thinking, reasoning, and other domains by a substantial margin.
Grok 5 may also be coming soon. As per Musk in another post on X, xAI will be starting the training of Grok 5 in a few weeks. Musk definitely seems to be highly optimistic about the capabilities of Grok 5, with the CEO stating late last month that the update would be coming before the end of the year and that it will be “crushingly good.”
News
SpaceX is partnering with chipmakers to enable Starlink satellite-to-cell service
President Gwynne Shotwell outlined the effort during a space industry conference in Paris.

SpaceX is working with microchip manufacturers to integrate satellite-connectivity hardware into smartphones, advancing its plan for direct-to-device services through Starlink.
The move follows the company’s $17 billion acquisition of wireless spectrum from EchoStar Corp., a deal that positions SpaceX to operate more independently of traditional telecom carriers.
President Gwynne Shotwell outlined the effort during a space industry conference in Paris this week, as noted in a Bloomberg News report.
Starlink direct-to-device
Starlink currently serves millions of customers in over 100 countries, primarily through ground-based dishes. The company, however, is now expanding into satellite-to-cell service, which should enable unmodified phones to connect directly with orbiting satellites. While SpaceX has a partnership with T-Mobile US, the EchoStar spectrum purchase gives it more control to negotiate with global carriers on its own terms.
“We’re working with chip manufacturers to get the proper chips in phones,” the SpaceX President stated. “We will now be initiating discussions with telcos in a different way now. Now it’s our spectrum, but we want to work with them, almost providing capacity and wholesaling capacity to their customers.”
The company plans to launch satellites capable of supporting its direct-to-device business within two years, with early mobile phone testing expected by late 2026.
Starship program continues test flights
Shotwell also addressed SpaceX’s Starship program, which recently completed its 10th test flight in August. She said the mission met all objectives, providing a critical morale boost to teams after a challenging development year.
“My Starship team needed that win,” Shotwell noted. “Development programs always are kind of a 24/7 operation, and I was really pleased for them.”
SpaceX is planning to fly one more iteration of the current Starship prototype, known as V2, before transitioning to the next-generation V3 vehicle. That version, expected to debut late this year or early 2026, is designed to be more capable and support eventual crewed missions to the Moon and Mars.
“The V3, which we want to fly hopefully late this year, but maybe early next year, is really the vehicle that could take humans to the moon and Mars,” Shotwell stated.
Elon Musk
Elon Musk says xAI has a chance to reach AGI with Grok 5
The comment came after Grok 4 posted strong results on the ARC-AGI benchmark.

Elon Musk suggested this week that his artificial intelligence startup xAI has the potential to reach artificial general intelligence (AGI) with the next version of its large language model, Grok 5.
The comment came after Grok 4 posted strong results on the ARC-AGI benchmark, which tests reasoning and problem-solving ability.
Musk sees Grok 5 as AGI candidate
In a post on X, user @amXFreeze shared the latest results of the ARC-AGI leaderboard, which showed Grok 4 outpacing rival systems such as OpenAI’s ChatGPT in problem-solving and open program synthesis tasks.
Musk reacted to the performance by stating that “I now think xAI has a chance of reaching AGI with Grok 5. Never thought that before.”
Artificial General Intelligence (AGI) refers to an AI system that is capable of matching or surpassing human-level intelligence across tasks such as thinking, reasoning, and other domains by a notable margin, as noted in a report from Benzinga. AI companies today are actively pursuing AGI.
xAI’s speed
While xAI was only established in March 2023, the startup has grown aggressively. Since its founding, it has rapidly risen in the AI segment and its Grok large language model has become a mainstream option for everyday users, especially on social media platform X. The company is still growing aggressively, and it is currently expanding its Colossus supercomputer cluster in Memphis.
During xAI’s Engineering Open House event in San Francisco in its early days, Elon Musk highlighted that speed would be the company’s primary competitive edge. To highlight this, Musk stated that “No SR-71 Blackbird was ever shot down and it only had one strategy: to accelerate.” So far, xAI is definitely playing this role very well.
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