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NASA scrubs first SLS Moon rocket launch attempt
NASA has scrubbed the first attempted launch of its Space Launch System (SLS) Moon rocket after running into multiple issues, one of which could not be solved in time.
The delay is bad news for the tens to hundreds of thousands of tourists who traveled to Cape Canaveral, Florida to witness the launch in person. Worse, by NASA’s own implicit admission, there’s a good chance the main problem SLS encountered could have already been dealt with and rectified in advance of the launch attempt if the space agency had finished testing the rocket earlier this summer.
Ultimately, that omission turned the first SLS launch attempt into more of a continuation of the rocket’s first four wet dress rehearsal (WDR) attempts, none of which ended as expected. NASA engineers will now have to decide how to proceed and whether the SLS rocket can be made ready in time for another launch attempt on September 2nd or 5th. If not, the next opportunity could be weeks away.
As far as SLS test operations go, the August 28/29th launch attempt was fairly ordinary, with the rocket running into multiple issues – a few minor, a few significant, and one identical to a previous problem. The first problem – a hydrogen leak near the SLS rocket’s base – came after a risk of lightning delayed the start of propellant loading by more than an hour. A very similar, if not identical, hydrogen fuel leak had already occurred during official wet dress rehearsal testing in April and July.
That leak was fixed on the fly by properly chilling all related systems, and propellant loading was eventually completed – albeit a few hours late thanks to inclement weather. Shortly after, there were reports of a crack that needed careful analysis. Only later did NASA specify that the suspected crack was in the rocket’s foam insulation rather than its structures, the latter of which could have been a catastrophic problem.
Around the same time, the true showstopper of the day occurred when NASA attempted to chill the SLS Core Stage’s four RS-25 engines, all of which flew several times aboard reusable Space Shuttle orbiters. Three engines performed (mostly) as expected, flowing a bit of liquid hydrogen fuel to cool themselves down, but one – engine #3 – was never able to make progress toward the optimal temperature needed for ignition (~5°C/~41°F). After hours of remote troubleshooting attempts, no progress had been made, and NASA ultimately decided to scrub the launch attempt at T-40 minutes to liftoff.
Over the course of four separate wet dress rehearsal attempts in April and June 2022, NASA was never able to test the core stage’s engine chill capabilities. In a post-scrub press conference, Jim Free – NASA’s Associate Administrator of the Exploration Systems Development Division – revealed that all four engines were warmer than intended, further confirming that skipping a fully nominal wet dress rehearsal was likely a mistake. Clear and present evidence aside, Free stated that he and other executives still believed skipping that test was the right decision, claiming that ending explicit WDR testing reduced the number of times the rocket needed to be moved on its transporter.
Making the situation even harder to explain, Artemis I Mission Manager Mike Sarafin revealed in the conference Q&A that Boeing had changed the design of parts of the SLS engine chill (bleed) system after the Core Stage finally conducted a nominal static fire test at Mississippi’s Stennis Space Center. Completed in March 2021, the SLS rocket then sat inside NASA’s Kennedy Space Center, Florida Vehicle Assembly Building (VAB) for a full year before attempting its first wet dress rehearsal tests at the launch pad.
The first round of three WDRs were not as smooth as NASA expected and instead uncovered three relatively small issues: a hydrogen leak, a single faulty upper stage valve, and problems with a ground supply of nitrogen gas. Those small issues led NASA to roll SLS back to the VAB for repairs, incurring a minimum multi-week delay that stretched into two months. SLS also failed to complete a fourth WDR attempt in July 2022, but NASA decided to overlook the rocket parts and phases of preflight operations that were never actually tested as planned, one of which was the engine chill system.
If NASA cannot fix the RS-25 chill system within the next few days, it will be forced to roll the entire rocket and mobile launch platform back to the VAB to – at a minimum – replace its flight termination system (FTS). The US Eastern Range requires that all rocket FTS systems be tested no more than 15 days before launch, and NASA was able to secure special permission for a gap of up to 25 days. However, because Boeing’s Core Stage design places the FTS system in a location that is reportedly inaccessible at the pad, the entire SLS rocket will need to roll back to the VAB to have its FTS systems “retested” after that period.
As a result, NASA’s SLS launch debut will be delayed by several weeks (at best) if it can’t recycle for another attempt on September 2nd or 5th. The next window runs from September 20th to October 4th, but the SLS rocket took 10 days to go from its latest rollout to first launch attempt – a figure that doesn’t include the time required to remove the rocket from the pad, roll it back to the VAB, and conduct any necessary repairs or tests while back in the bay. If NASA can’t fix the engine problem at the pad by September 3rd or 4th, the true delay could be more like 4-6 weeks.
With any luck, that won’t happen, but it’s clear that a lot of stress and discomfort could have been avoided if NASA had gone into its first launch attempt knowing that its SLS rocket was truly ready.
News
NHTSA probes 2.9 million Tesla vehicles over reports of FSD traffic violations
The agency said FSD may have “induced vehicle behavior that violated traffic safety laws.”
The U.S. National Highway Traffic Safety Administration (NHTSA) has opened an investigation into nearly 2.9 million Tesla vehicles over potential traffic-safety violations linked to the use of the company’s Full Self-Driving (FSD) system.
The agency said FSD may have “induced vehicle behavior that violated traffic safety laws,” citing reports of Teslas running red lights or traveling in the wrong direction during lane changes.
As per the NHTSA, it has six reports in which a Tesla with FSD engaged “approached an intersection with a red traffic signal, continued to travel into the intersection against the red light and was subsequently involved in a crash with other motor vehicles in the intersection.” Four of these crashes reportedly resulted in one or more major injuries.
The agency also listed 18 complaints and one media report which alleged that a Tesla operating with FSD engaged “failed to remain stopped for the duration of a red traffic signal, failed to stop fully, or failed to accurately detect and display the correct traffic signal state in the vehicle interface.”
Some complainants also alleged that FSD “did not provide warnings of the system’s intended behavior as the vehicle was approaching a red traffic signal,” as noted in a Reuters report.
Tesla has not commented on the investigation, which remains in the preliminary phase. However, any potential recall could prove complicated since the reported incidents likely involved the use of older FSD (Supervised) versions that have already been updated.
Tesla’s recent FSD (Supervised) V14.1 update, which is currently rolling out to drivers, is expected to feature significantly improved lane management, intersection handling, and overall driving accuracy, reducing the chances of similar violations. It should also be noted that Tesla maintains that FSD is a supervised system for now, and thus, is not autonomous yet.
While autonomous systems face scrutiny, NHTSA’s own data highlights a much larger danger on the road from human error. The agency recorded 3,275 deaths in 2023 caused by distracted driving due to activities like texting, talking, or adjusting navigation while operating a vehicle manually. It is also widely believed that a good number of traffic violations are unreported due to their frequency and ubiquity.
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Tesla quietly files for Model Y+ in China, and its range numbers could be wild
The upcoming variant was listed in the Ministry of Industry and Information Technology’s (MIIT) public catalog.
Tesla has filed for regulatory approval of a new Model Y+ in China, hinting at a long-range update to its best-selling crossover SUV.
The upcoming variant was listed in the Ministry of Industry and Information Technology’s (MIIT) public catalog.
Mirroring Model 3+ Range
Based on the MIIT’s catalog, the Model Y+ will feature a 225 kW/302 horsepower single-motor setup. It will also feature ternary LG Energy Solution batteries, similar to the long-range Model 3+, which was launched earlier this year. The vehicle is expected to offer around 800 kilometers of CLTC range, potentially making it the longest range Model Y in Tesla China’s lineup.
The new Model Y+, identified under model number TSL6480BEVBR0, retains the same five-seat configuration and dimensions as the current Model Y. Though Tesla has not yet confirmed official range figures, industry observers expect it to be quite similar to the Model 3+’s 830-kilometer CLTC performance, as noted in a CNEV Post report.
Intensifying Competition
Tesla’s filing comes amid intensifying domestic competition in China. The U.S. EV maker sold 57,152 vehicles in August, down nearly 10% year-on-year, though up almost 41% from July’s 40,617 units, as noted by data from the China Passenger Car Association (CPCA). Still, the Model Y+ could help Tesla regain traction against strong local players by offering class-leading range and improved efficiency, two factors that have become a trademark of the electric vehicle maker in China.
Tesla’s experience with the Model 3+, which received a RMB 10,000 price cut within a month of launch, suggests that raw range numbers alone may not guarantee stronger sales. With this in mind, the rollout of features such as FSD could prove beneficial in boosting the company’s sales in the country.
One notable investor that many people will recognize said today on X that he does not understand Tesla shorts, otherwise known as $TSLAQ, and he’s giving some interesting reasons.
Martin Shkreli was long known as “Pharmabro.” For years, he was known as the guy who bought the rights to a drug called Daraprim, hiked the prices, and spent a few years in Federal prison for securities fraud and conspiracy.
Shkreli is now an investor who co-founded several hedge funds, including Elea Capital, MSMB Capital Management, and MSMB Healthcare. He is also known for his frank, blunt, and straightforward responses on X.
His LinkedIn currently shows he is the Co-Founder of DL Software Inc.
One of his most recent posts on X criticized those who choose to short Tesla stock, stating he does not understand their perspective. He gave a list of reasons, which I’ll link here, as they’re not necessarily PG. I’ll list a few:
- Fundamentals always have and will always matter
- TSLAQ was beaten by Tesla because it’s “a great company with great management,” and they made a mistake “by betting against Elon.”
- When Shkreli shorts stocks, he is “shorting FRAUDS and pipe dreams”
After Shkreli continued to question the idea behind shorting Tesla, he continued as he pondered the mentality behind those who choose to bet against the stock:
“I don’t understand ‘TSLAQ.’ Guy is the richest man in the world. He won. It’s over. He’s more successful with his 2nd, 3rd, and 4th largest companies than you will ever be, x100.
You can admit you are wrong, it’s just a feeling which will dissipate with time, trust me.”
i dont understand “$TSLAQ”. guy is the richest man in the world. he won. it’s over. he’s more successful with his 2nd, 3rd and 4th largest companies than you will ever be, x100.
you can admit you are wrong, it’s just a feeling which will dissipate with time, trust me. https://t.co/dkqrISCldp
— Martin Shkreli (@MartinShkreli) October 8, 2025
According to reports from both Fortune and Business Insider, Tesla short sellers have lost a cumulative $64.5 billion since Tesla’s IPO in 2010.
Shorts did accumulate a temporary profit of $16.2 billion earlier this year.
NHTSA probes 2.9 million Tesla vehicles over reports of FSD traffic violations
Tesla quietly files for Model Y+ in China, and its range numbers could be wild
‘I don’t understand TSLAQ:’ notable investor backs Tesla, Elon Musk
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