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NASA says SLS Moon rocket is ‘go’ for launch debut

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After rolling the vehicle to its Kenndy Space Center, Florida launch pad two days early for what is hoped to be the third and final time, NASA says that the first Space Launch System (SLS) Moon rocket is ready to take flight.

The Artemis I mission’s SLS reached Launch Complex 39B on August 17th after a 10-hour, 4-mile trip from KSC’s iconic Vehicle Assembly Building (VAB). NASA and its contractors spent the five subsequent days connecting the rocket to the pad and preparing both for flight – a process that will continue up until the moment the pad is cleared around a day or two prior to launch. On August 22nd, SLS and Orion program leaders completed a surprisingly clean Flight Readiness Review (FRR) for Artemis I, confirming that all related hardware, software, systems, and teams are (or will soon be) ready to launch.

Barring surprises, SLS remains on track to attempt its first launch and send an Orion spacecraft to the Moon no earlier than (NET) 8:33 am EDT (12:33 UTC) on Monday, August 29th.

The sun rises on NASA’s first SLS rocket, August 19th. (Richard Angle)

Jim Free, Associate Administrator of NASA’s Exploration Systems Development division, reported that the SLS Artemis I FRR was completed with no exceptions, no additional actions required, and no dissenting opinions about the rocket’s readiness. Given just how rocky all aspects of SLS development have been, an almost perfectly clean review was not exactly expected, but it bodes well for a launch attempt during the first available window. Some work still needs to be completed, however, including at least one test that could not be completed during past test campaigns.

The rocket and pad’s behavior during two recent wet dress rehearsal (WDR) test campaigns in April and June also suggest that it could take NASA a few tries before SLS actually lifts off. There’s also a nonzero chance that minor to moderate problems could arise before liftoff, potentially requiring NASA to roll the rocket back to the VAB for a third time for repairs or longer-term troubleshooting. Thankfully, NASA officials were unusually candid in a post-FRR press conference and acknowledged many of those realities, noting that the first SLS launch could require multiple attempts.

Free even issued a statement on Twitter that almost directly acknowledged the possibility that Artemis I could end badly. While he avoided actually stating as much, the assistant administrator noted that “things may not go to plan” over the course of the mission. SLS will be the first rocket in history to attempt to send a payload to the Moon on its launch debut. Prior to attempting to enter orbit around the Moon and safely return to Earth, the Orion capsule will have only completed one suborbital test flight, and its propellant and propulsion section (service module) will have never flown.

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With any luck, the rocket will make it through preflight operations without a major hitch and launch on the first try on August 29th. If not, NASA has backup opportunities on September 2nd and 5th. If all goes to plan, Artemis I will last approximately 42 days from liftoff to Orion capsule splashdown. The SLS rocket’s job will be complete around three hours after liftoff, leaving Orion to enter orbit around the Moon and eventually return to Earth.

During Artemis I, Orion will attempt to enter a distant retrograde orbit (DRO) around the Moon, an orbit that will never be used again. The orbit NASA actually intends to use after Artemis II is called a near-rectilinear halo orbit (NRHO) and is quite different.

Strangely, NASA is sending Orion to a lunar orbit different than the one the spacecraft will regularly visit with astronauts on operational missions, which are scheduled to begin with Artemis III as early as 2025. The Artemis I spacecraft also lacks a docking port and life support systems, and SLS will launch with an inert launch abort system (LAS), further weakening the test flight’s overall relevance for crewed missions.

No matter the outcome, NASA is poised to gather a massive amount of data about the performance of SLS and Orion over the course of Artemis I. In a best-case scenario, only minor tweaks will be required and Artemis II – a less complex crewed test flight including a free-return trip around the Moon – will remain on track to launch sometime in 2024.

(Richard Angle)
(Richard Angle)
(Richard Angle)

Eric Ralph is Teslarati's senior spaceflight reporter and has been covering the industry in some capacity for almost half a decade, largely spurred in 2016 by a trip to Mexico to watch Elon Musk reveal SpaceX's plans for Mars in person. Aside from spreading interest and excitement about spaceflight far and wide, his primary goal is to cover humanity's ongoing efforts to expand beyond Earth to the Moon, Mars, and elsewhere.

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Elon Musk’s X will start using a Tesla-like software update strategy

The initiative seems designed to accelerate updates to the social media platform, while maintaining maximum transparency.

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Ministério Das Comunicações, CC BY 2.0 , via Wikimedia Commons

Elon Musk’s social media platform X will adopt a Tesla-esque approach to software updates for its algorithm.

The initiative seems designed to accelerate updates to the social media platform, while maintaining maximum transparency.

X’s updates to its updates

As per Musk in a post on X, the social media company will be making a new algorithm to determine what organic and advertising posts are recommended to users. These updates would then be repeated every four weeks. 

“We will make the new 𝕏 algorithm, including all code used to determine what organic and advertising posts are recommended to users, open source in 7 days. This will be repeated every 4 weeks, with comprehensive developer notes, to help you understand what changed,” Musk wrote in his post.

The initiative somewhat mirrors Tesla’s over-the-air update model, where vehicle software is regularly refined and pushed to users with detailed release notes. This should allow users to better understand the details of X’s every update and foster a healthy feedback loop for the social media platform.

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xAI and X

X, formerly Twitter, has been acquired by Elon Musk’s artificial intelligence startup, xAI last year. Since then, xAI has seen a rapid rise in valuation. Following the company’s the company’s upsized $20 billion Series E funding round, estimates now suggest that xAI is worth tens about $230 to $235 billion. That’s several times larger than Tesla when Elon Musk received his controversial 2018 CEO Performance Award. 

As per xAI, the Series E funding round attracted a diverse group of investors, including Valor Equity Partners, Stepstone Group, Fidelity Management & Research Company, Qatar Investment Authority, MGX, and Baron Capital Group, among others. Strategic partners NVIDIA and Cisco Investments also continued support for building the world’s largest GPU clusters.

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Tesla FSD Supervised wins MotorTrend’s Best Driver Assistance Award

The decision marks a notable reversal for the publication from prior years, with judges citing major real-world improvements that pushed Tesla’s latest FSD software ahead of every competing ADAS system.

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Credit: Grok Imagine

Tesla’s Full Self-Driving (Supervised) system has been named the best driver-assistance technology on the market, earning top honors at the 2026 MotorTrend Best Tech Awards

The decision marks a notable reversal for the publication from prior years, with judges citing major real-world improvements that pushed Tesla’s latest FSD software ahead of every competing ADAS system. And it wasn’t even close. 

MotorTrend reverses course

MotorTrend awarded Tesla FSD (Supervised) its 2026 Best Tech Driver Assistance title after extensive testing of the latest v14 software. The publication acknowledged that it had previously criticized earlier versions of FSD for erratic behavior and near-miss incidents, ultimately favoring rivals such as GM’s Super Cruise in earlier evaluations.

According to MotorTrend, the newest iteration of FSD resolved many of those shortcomings. Testers said v14 showed far smoother behavior in complex urban scenarios, including unprotected left turns, traffic circles, emergency vehicles, and dense city streets. While the system still requires constant driver supervision, judges concluded that no other advanced driver-assistance system currently matches its breadth of capability.

Unlike rival systems that rely on combinations of cameras, radar, lidar, and mapped highways, Tesla’s FSD operates using a camera-only approach and is capable of driving on city streets, rural roads, and freeways. MotorTrend stated that pure utility, the ability to handle nearly all road types, ultimately separated FSD from competitors like Ford BlueCruise, GM Super Cruise, and BMW’s Highway Assistant.

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High cost and high capability

MotorTrend also addressed FSD’s pricing, which remains significantly higher than rival systems. Tesla currently charges $8,000 for a one-time purchase or $99 per month for a subscription, compared with far lower upfront and subscription costs from other automakers. The publication noted that the premium is justified given FSD’s unmatched scope and continuous software evolution.

Safety remained a central focus of the evaluation. While testers reported collision-free operation over thousands of miles, they noted ongoing concerns around FSD’s configurable driving modes, including options that allow aggressive driving and speeds beyond posted limits. MotorTrend emphasized that, like all Level 2 systems, FSD still depends on a fully attentive human driver at all times.

Despite those caveats, the publication concluded that Tesla’s rapid software progress fundamentally reshaped the competitive landscape. For drivers seeking the most capable hands-on driver-assistance system available today, MotorTrend concluded Tesla FSD (Supervised) now stands alone at the top.

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Elon Musk’s Grokipedia surges to 5.6M articles, almost 79% of English Wikipedia

The explosive growth marks a major milestone for the AI-powered online encyclopedia, which was launched by Elon Musk’s xAI just months ago.

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UK Government, CC BY 2.0 , via Wikimedia Commons

Elon Musk’s Grokipedia has grown to an impressive 5,615,201 articles as of today, closing in on 79% of the English Wikipedia’s current total of 7,119,376 articles. 

The explosive growth marks a major milestone for the AI-powered online encyclopedia, which was launched by Elon Musk’s xAI just months ago. Needless to say, it would only be a matter of time before Grokipedia exceeds English Wikipedia in sheer volume.

Grokipedia’s rapid growth

xAI’s vision for Grokipedia emphasizes neutrality, while Grok’s reasoning capabilities allow for fast drafting and fact-checking. When Elon Musk announced the initiative in late September 2025, he noted that Grokipedia would be an improvement to Wikipedia because it would be designed to avoid bias. 

At the time, Musk noted that Grokipedia “is a necessary step towards the xAI goal of understanding the Universe.”

Grokipedia was launched in late October, and while xAI was careful to list it only as Version 0.1 at the time, the online encyclopedia immediately earned praise. Wikipedia co-founder Larry Sanger highlighted the project’s innovative approach, noting how it leverages AI to fill knowledge gaps and enable rapid updates. Netizens also observed how Grokipedia tends to present articles in a more objective manner compared to Wikipedia, which is edited by humans.

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Elon Musk’s ambitious plans

With 5,615,201 total articles, Grokipedia has now grown to almost 79% of English Wikipedia’s article base. This is incredibly quick, though Grokipedia remains text-only for now. xAI, for its part, has now updated the online encyclopedia’s iteration to v0.2. 

Elon Musk has shared bold ideas for Grokipedia, including sending a record of the entire knowledge base to space as part of xAI’s mission to preserve and expand human understanding. At some point, Musk stated that Grokipedia will be renamed to Encyclopedia Galactica, and it will be sent to the cosmos

“When Grokipedia is good enough (long way to go), we will change the name to Encyclopedia Galactica. It will be an open source distillation of all knowledge, including audio, images and video. Join xAI to help build the sci-fi version of the Library of Alexandria!” Musk wrote, adding in a later post that “Copies will be etched in stone and sent to the Moon, Mars and beyond. This time, it will not be lost.”

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