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SpaceX Falcon 9 Block 5 booster sails into port aboard OCISLY after launch #2

Standing in for B1047.2, Falcon 9 B1049 returned to Port Canaveral in mid-September. (Tom Cross)

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8 years ago

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SpaceX’s second Falcon 9 Block 5 booster, core B1047, has returned once more to Port Canaveral, Florida aboard drone ship Of Course I Still Love You (OCISLY) after a successful flight-proven launch, placing commercial communications satellite Es’hail-2 into a healthy, high-energy orbit.

SpaceX’s third reuse of a Block 5 booster since the upgraded Falcon 9 version’s May 2018 debut, the November 15 launch marks the company’s 11th mission to launch on a flight-proven rocket in 2018 alone, more than 60% of the 18 missions completed thus far.

Prior to launching Es’hailsat’s Es’hail-2 satellite, Falcon 9 B1047 placed the massive ~7000 kg (15,500 lb) Telstar 19V communications satellite into orbit while also marking the second successful launch of Falcon 9’s Block 5 iteration. Nearly a new rocket, Block 5 focused on dramatically improving the reliability and reusability of the workhorse Falcon 9 rocket, ultimately translating into the total redesign and replacement of a large number of major subsystems.

The changes range from a totally new octaweb thrust structure (bolted, rather than welded, together), a clean-sweep upgrade of first and second stage avionics, new helium and nitrogen pressure vessels (COPVs), a total revamp of thermal protection for the interstage, legs, and octaweb, significantly refined Merlin 1D sea level and vacuum engines, Fairing 2.0, and much, much more. With the extensive changes brought by Block 5, SpaceX engineers strove to fully eradicate or at least cushion several unlikely but possible failure modes while also increasing the overall usable lifespan of particularly flight-critical, wear-intensive systems and components.

Falcon 9 B1049 lifts off from SpaceX’s LC-40 pad on September 10. (Tom Cross)

How many layers of soot?

Although it’s clear that some distance must still be covered before the specific goals of Block 5 can be realized, the aspiration of the design is to enable as many as 10 booster reuses with little more than thorough inspections between launches, and perhaps 100 or more launches per booster with more extensive maintenance and repairs every 10 or so launches.

The first unprecedented step in that direction – for Falcon 9 Block 5, at least – will be the third launch of a specific booster, a feat SpaceX was not willing to attempt before Block 5’s introduction. That milestone third launch was actually meant to occur on Monday, November 19 but has since been delayed to give SpaceX time to perform additional preflight inspections of Falcon 9, be it the twice-flown booster, the upper stage, the payload fairing, or all of the above.

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Given just how critical a step the launch will be for SpaceX’s long-term goal of fielding rockets with aircraft-like reusability, caution is particularly key in this case, as any partial or total failure will almost instantly soil multi-flight Falcon 9 boosters in the eyes of a number of launch customers, potentially leading customers to request launches on boosters that have previously flown less than twice. Even then, a 5-7 day delay can be extremely unsavory for many customers, as time is very frequently money for satellite operators – a satellite on the ground is essentially a black hole that devours capital and generates zero revenue, sort of like a nuclear reactor that hasn’t been connected to the grid.

B1047’s successful return to port after a second operational launch will serve as another valuable wealth of data that can be used to further optimize SpaceX’s understanding of Falcon 9 Block 5 and its capabilities.

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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 Model Y L’s new features flexed at unveiling event at Diner

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15 hours ago

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July 31, 2026

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Tesla Model Y L in a field
Credit: Tesla

Tesla flexed the new features of the Model Y L with a dedicated media event at the company’s Diner on Santa Monica Boulevard in Los Angeles.

The Model Y L is the extended-wheelbase version of the all-electric crossover, which has been voted the best-selling car in the world on three occasions. The vehicle is already rolling off production lines at Gigafactory Texas, and first deliveries are slated to take place later this year.

Tesla brings Model Y L ‘Launch Series’ to the U.S. at $61,990

Teslarati was invited to the event, but due to some scheduling conflicts, we could not make it to Los Angeles. Instead, we will have our hands on a media unit sometime in August, so we’ll be able to spend some more extended time with the Model Y L.

However, plenty of those who made it to LA shared some cool features that set the Model Y L apart from the Model Y.

Multi-Row Climate Control

Tesla fitted the Model Y L with full climate control on all three rows on the front screen. It can be adjusted by selecting which row you’d like to modify on the right-hand side of the touch screen:

Better Rear Window Visibility

One of the strangest things about the Model Y, especially the Juniper iteration, is the rear window has extremely limited visibility when looking into the rearview mirror.

Tesla has improved upon this with the Model Y L:

PowerShare will be included

Model Y L will come with PowerShare in North America, with an 11.5kW output to your home. Tesla said it would require Powerwall 3 for operation.

Wireless Charging Pad

There has been some speculation that Tesla would upgrade the wireless charging pads in the United States, but this is not the case.

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Tesla owner fixes common feature complaint with crafty DIY retrofit

Tesla confirmed that it does not come with the cooled pads as the Y L in China does. This is because North America has not adopted Qi charging yet.

Thermal Management Improvements

These improvements in the Model Y L were seen with thermal management:

  • Up to 15% faster cabin cooling
  • +23% thermal efficiency gained in hot weather, 7 miles of real-world range gained
  • 8x more solar energy reflection off of glass roof
  • 30% reduction in solar energy entering the cabin

Demand

Tesla said the Model Y L is almost sold out in the U.S. It comes with

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  • 1 year of FSD Supervised
  • 1 year of Supercharging
  • 1 year of Premium Connectivity
  • Free exterior paint color, interior, and wheel option at no additional cost
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Elon Musk

Tesla CEO Elon Musk denies ridiculous Gigafactory Shanghai rumor

Published

17 hours ago

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July 31, 2026

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(Credit: Tesla)

Tesla CEO Elon Musk took to his social media platform X on Thursday night to deny a ridiculous rumor regarding the sale of the company’s Chinese vehicle production plant, Gigafactory Shanghai.

On Thursday, the Wall Street Journal, citing sources familiar with the matter, claimed in a scathing new report that Tesla was exploring a potential sale of the entire China business in an effort to help bolster a potential merger between SpaceX and Tesla.

Musk immediately denied the rumor not once but twice, initially calling it “fake news,” and then calling it “absurdly fake news” in a separate post just a few moments later:

The original poster of the Wall Street Journal article that Musk saw deleted the initial post sharing the headline and the rumored sale of Tesla’s China business.

The report seemed absolutely and unequivocally false to begin with; Tesla’s business in China is among the most important pieces of the company’s business. Not only does the factory supply vehicles for the domestic market, but also for various other markets in Asia and Europe.

China is also one of the largest automotive markets in the world, and Tesla has performed well there despite the robust competition.

The speculation regarding a Tesla and SpaceX merger has started to gain steam this year as the space exploration company went public just a month ago. There has been speculation that Musk will bridge all of his companies under one “umbrella company,” and analysts believe this could happen before the end of the decade.

The Tesla and SpaceX merger everyone is talking about is quietly building

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This is the latest iteration of Musk’s very evident war on mainstream media. Reports regarding any of Musk’s companies are quick to get the dreaded “false” or “fake news” response from the CEO when they are unfounded.

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Elon Musk

Tesla AI boss reveals how big Optimus is going to get

Tesla’s Optimus chief corrected himself on X, confirming a staggering 10 million robot production target.

Published

1 day ago

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July 31, 2026

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Tesla Optimus Gen 3 [Credit: Tesla]

Tesla’s Optimus program has a new number attached to it, after Ashok Elluswamy, the executive who has run the humanoid robot program since June 2025, posted a three word correction on X Thursday, “Correction, 10 million robots.”

The line clarifies the long term annual capacity Tesla is building toward its planned second Optimus production line at Gigafactory Texas, a figure Musk has cited repeatedly since last year’s shareholder meeting.

The scale is worth noting, because ten million robots a year would mean Tesla building more units annually than most countries sell in new cars. Tesla has framed this as a second line, not the first. The buildout is happening in two phases: a roughly one million unit per year line inside Tesla’s Fremont factory, installed on the floor space vacated when Model S and Model X production ended earlier this year, and a much larger dedicated facility under construction at Giga Texas that broke ground on its first steel structure in May. That Texas facility is the one Elluswamy’s correction refers to, and is expected to reach volume production sometime in 2027.

Tesla Optimus project fires up as Musk sees production line progress

Elluswamy took over Optimus from Milan Kovac last summer and has spent the months since talking up the program’s trajectory. Elon Musk has also floated the ten million figure at Tesla’s 2025 shareholder meeting.

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Ending Model S and Model X production to make room for the first Optimus line was one of the more consequential manufacturing decisions in the company’s recent history, retiring two flagship vehicles in favor of a robot that has yet to enter mass production. Musk has previously estimated per unit production costs at $20,000 to $25,000 once Tesla reaches a million units a year, though he hasn’t said what that cost looks like at ten times the volume.

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