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Falcon 9 B1046 lifted off for the fourth and final time on January 19th, sacrificed so its Crew Dragon payload could perform a flawless in-flight abort (IFA) test. (Richard Angle) Falcon 9 B1046 lifted off for the fourth and final time on January 19th, sacrificed so its Crew Dragon payload could perform a flawless in-flight abort (IFA) test. (Richard Angle)

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SpaceX’s first ever Block 5 booster gives one last hurrah, in photos

Falcon 9 B1046 lifted off for the fourth and final time on January 19th, sacrificed so its Crew Dragon payload could perform a flawless in-flight abort (IFA) test. (Richard Angle)

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After helping SpaceX enter a new era of routine rocket reusability, the very first Falcon 9 Block 5 booster is officially nothing more than bits, pieces, and a few artificial reefs at the bottom of the Atlantic Ocean — intentionally destroyed to give SpaceX the confidence it needs to soon launch astronauts.

Captured on camera by Teslarati photographer Richard Angle, the upgraded Falcon 9 booster was able to give one last spectacular hurrah prior to its even more spectacular demise, returning fire to Kennedy Space Center (KSC) Launch Complex 39A for the first time in more than half a year. Lacking landing legs and grid fins, visible instead as comically stark outlines on the booster’s sooty exterior, Falcon 9 B1046 lifted off for the fourth and final time on January 19th, 2020.

In doing so, B1046 became the third orbital-class booster ever to fly launch four separate missions — a more than fitting end to the first in a line of upgraded Falcon 9 rockets that have brought with them major improvements in reusability and reliability. Nevertheless, a little over 90 seconds after lifting off for the fourth time, Falcon 9 B1046 – left behind after Crew Dragon successfully escaped the (simulated) failing rocket – yielded under intense off-nominal stresses, rupturing the booster’s propellant tanks and creating a vast fireball at least 300 meters (1000+ ft) in diameter.

Powered by nine Merlin 1D engines and capable of producing up to 7600 kN (1.7 million lbf) of thrust, Falcon 9 B1046 was extensively tested at SpaceX’s McGregor, Texas development facilities over a period of two or so months – unusually lengthy. The extra time was used to make sure that the first completed Block 5 booster – representing an almost clean-slate upgrade of the Falcon rocket family – was agreeing with SpaceX’s engineering models and expectations at all points.

The company likely spent several weeks or more performing numerous wet dress rehearsals (WDRs) — filling Falcon 9 B1046’s propellant tanks with liquid oxygen, refined kerosene (RP-1), helium, and nitrogen and verifying that the rocket was structurally sound and functioning smoothly. Once complete, SpaceX moved onto static fire testing, igniting the booster’s M1D engines for increasing periods of time. Finally, the company wrapped up the rocket and shipped it by road from Texas to Florida.

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Falcon 9 B1046 rolled out to the launch pad for the first time ever on May 3rd, 2018. (SpaceX)

Shortly thereafter, the rocket was quickly prepared for flight and became the first Falcon 9 Block 5 booster to successfully launch and land in May 2018. Over the course of 2018, SpaceX debuted another five Block 5 boosters, while Falcon 9 B1046 became the first Block 5 booster to launch both twice and three times in August and December.

Cheaper launches as a result of reusable rockets may not necessarily increase demand for satellite launches.
B1046 lifts off for the first time on May 4th, 2018. (Teslarati)
B1046 is pictured here in August 2018 after its second successful launch. (Teslarati)
Falcon 9 B1046 lands on drone ship Just Read The Instructions after its third successful launch in December 2018 – the first SpaceX rocket to cross the three-flight reusability milestone. (SpaceX)

Finally, on January 19th, 2020, Falcon 9 B1046 lifted off for the fourth and last time, becoming the third SpaceX booster to do so in barely two months. Fittingly, B1046’s last launch occurred at Pad 39A, the same launch site it lifted off from for the first time back in May 2018. Carrying an expendable upper stage, Dragon trunk, and Crew Dragon capsule C205, B1046 could not have experienced a more perfect 90 or so seconds of uninterrupted flight. Interrupted, however, it would shortly thereafter become.

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

Around 85 seconds after liftoff, Falcon 9 B1046 shut off its Merlin 1D engines at the same time as Crew Dragon C205 ignited eight SuperDraco engines, briskly carrying the spacecraft several thousand feet away in just a handful of seconds. Now fully uncontrolled and rudely interrupted to a supersonic wall of air, B1046 found itself bent and contorted in ways – and under loads – it simply was not designed to survive. Seconds later, the booster’s pressurized propellant tanks were breached, releasing a rapidly dispersing cloud of fuel and oxidizer that almost instantly ignited, creating a fireball the size of several city blocks.

All things considered, not a bad way to go for a well-worn rocket.

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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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Tesla Semi factory receives giant production equipment

The massive machine was transported to the Semi factory using two diesel trucks and a triple trailer.

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Credit: @HinrichsZane/X

Tesla seems determined to kick off the production of the Tesla Semi sometime this year at its Nevada factory.

This was hinted at by the arrival of massive production equipment to the Semi’s manufacturing site near Giga Nevada.

New equipment

What appeared to be a massive stamping machine has been transported to the Giga Texas complex. Spotted by longtime drone operator and Tesla Semi advocate @HinrichsZane, the massive contraption is so large and heavy that a single semi truck and trailer were not enough to move it. Instead, the massive machine was shipped to the Semi factory using two diesel trucks and a triple trailer.

The machine was fully covered in the videos from Nevada, but based on its shape and size, it appears that it is a stamping press for the Class 8 all-electric truck. Tesla is a pioneer in the use of Megacasts in the automotive industry, so it makes sense for the company to use a Giga Press for the Semi’s production as well.

Ambitious goals

The Tesla Semi factory is expected to produce a whopping 50,000 units of the Class 8 all-electric truck annually when it is fully ramped. At that output, the facility would be one of the country’s highest-volume plants for semi trailers, electric or otherwise. In a video posted earlier this year, Dan Priestley, who leads the Semi program at Tesla, stated that the company is looking to achieve volume production over the coming quarters.

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This should allow the Tesla Semi factory to mass produce the vehicle by 2026. Tesla CEO Elon Musk reiterated this timeframe recently, when he responded to a post on social media platform X about Microsoft co-founder Bill Gates being bearish about battery electric semi trucks.  “Tesla Semi will be in volume production next year,” Musk said in his post, which also included a laughing emoji. 

Check out the drone operator’s recent footage of the Tesla Semi factory in the video below.

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Elon Musk argues lidar and radar make self driving cars more dangerous

The CEO is not just stating that using sensors like lidar is unnecessary to achieve self-driving.

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Credit: Tesla/YouTube

Elon Musk is taking a firmer stance in the vision vs lidar debate for autonomous driving. In his more recent comments, the CEO is not just stating that using sensors like lidar is unnecessary to achieve self-driving. 

Musk is stating that using lidar actually makes self-driving cars more dangerous. 

Uber CEO’s comments

During a recent interview, Uber CEO Dara Khosrowshahi shared his thoughts on the autonomy race. As per the CEO, he is still inclined to believe that Waymo’s approach, which requires outfitting cars with equipment such as lidar and radar, is necessary to achieve superhuman levels of safety for self-driving cars. 

“Solid state LiDAR is $500. Why not include lidar as well in order to achieve super human safety. All of our partners are using a combination of camera, radar and LiDAR, and I personally think that’s the right solution, but I could be proven wrong,” the Uber CEO noted.

Elon Musk’s rebuttal

In response to the Uber CEO’s comments, Elon Musk stated that lidar and radar, at least based on Tesla’s experience, actually reduce safety instead of improving it. As per the Tesla CEO, there are times when sensors such as lidar and radar disagree with cameras. This creates sensor ambiguity, which, in turn, creates more risk. Musk then noted that Tesla has seen an improvement in safety once the company focused on a vision only approach. 

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“Lidar and radar reduce safety due to sensor contention. If lidars/radars disagree with cameras, which one wins? This sensor ambiguity causes increased, not decreased, risk. That’s why Waymos can’t drive on highways. We turned off the radars in Teslas to increase safety. Cameras ftw,’ Musk wrote.

Musk’s comments are quite notable as Tesla was able to launch a dedicated Robotaxi pilot in Austin and the Bay Area using its vision-based autonomous systems. The same is true for FSD, which is quickly becoming notably better than humans in driving. 

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Tesla Model Y L sold out for September 2025

This was hinted at in Tesla China’s configurator for the all-electric crossover.

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Credit: Tesla China

It appears that the Tesla Model Y L has been sold out in China for September 2025. This was hinted at in Tesla China’s configurator for the all-electric crossover.

Model Y L deliveries

Since the Model Y L’s official launch earlier this month, Tesla has been pretty consistent in the idea that the extended wheelbase variant of its best-selling vehicle will see its first deliveries sometime in September. This was quite an impressive timeframe for Tesla, considering that the Model Y L has only been launched this August. 

Nevertheless, both Tesla China’s Model Y configurator and comments from company executives have noted that the vehicle will see its first customer deliveries in September. “Tesla cars are fun to drive alone, whether you have children or how many children, this car can meet all your needs. We will deliver in September and wait for you to get in the car,” Tesla China VP Grace Tao wrote on Weibo.

Credit: Tesla China

October 2025 deliveries

A look at Tesla China’s order page as of writing shows that the earliest deliveries for the Model Y L, if ordered today, would be October 2025 instead. This suggests that the six-seat Model Y variant has effectively been sold out for September. This bodes well for the vehicle, and it suggests that it is a variant that may be able to raise Tesla’s sales numbers in China, as well as territories where the Model Y L could be exported.

Rumors of the Model Y L’s strong sales have been abounding. After the vehicle’s launch, industry watchers estimated that Tesla China has received over 35,000 orders for the Model Y L in just one day. Later estimates suggested that the Model Y L’s orders have breached the 50,000 mark.

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