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SpaceX recycles Falcon Heavy’s commercial launch debut to Thurs – here’s why

The first Falcon Heavy Block 5 rocket prepares for its inaugural launch from Pad 39A, April 10th. (Pauline Acalin)

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SpaceX has scrubbed the first attempted launch of Falcon Heavy Flight 2 due to high upper-level winds deemed too much of a risk to mission success. Thursday, April 11th’s recycled launch window is identical to Wednesday’s, stretching from 6:35pm-8:31pm ET (22:35-00:31 UTC).

According to SpaceX, both the Falcon Heavy Block 5 rocket and its Arabsat 6A satellite payload are in good health and would have been ready to launch on April 10th if the weather had been slightly more cooperative. While seemingly innocuous, something as basic as wind currents can risk the partial or total failure of rockets even as large as Falcon Heavy, The intricacy and stress-optimized nature of Falcon Heavy’s three interlinked boosters make the rocket particularly susceptible to off-nominal aerodynamic stresses, constantly performing a sort of balancing act to keep those boosters flying in a sort of formation at extreme speeds.

While rockets are also susceptible to extreme ground-level wind conditions, upper-level wind violations are far more common, particularly for SpaceX’s Falcon family. Falcon 9 and Heavy are uniquely at the mercy of these conditions due to a fineness ratio (height vs. width) unprecedented at their level of performance. In fact, Falcon boosters are so long, skinny, and mass-optimized that SpaceX actually pressurizes them with nitrogen during extended/unsupported periods in a horizontal orientation. In simpler terms, held near its extremities, Falcon first stages can actually damage themselves under their own weight by bending somewhere in the middle.

Past a certain point, this bending is highly undesirable. The walls of Falcon 9’s lithium-aluminum alloy propellant tanks – also doubling as part of the rocket’s load-bearing structure – are approximately 0.2 in (5mm) thick, around 40% thinner than an iPhone X. Weighing approximately 25,000 kg (55,000 lb) empty yet 550,000 kg (1,210,000 lb) when full of fuel, Falcon 9 is thus a bit like a rolled sheet of printer paper balancing under a textbook while accelerating at several Gs.

The problem is that Earth’s atmosphere is heavily stratified: there are many different horizontal layers of air that can end up moving in very different directions at very different speeds. Imagine for a second that you’re sprinting along a sidewalk but each sidewalk section is actually a treadmill moving slightly left or right. Running along at full speed, you abruptly hit several sections that are rapidly moving, say, right. Bad times are had. For Falcon Heavy (or 9), running into high upper-level winds is much less exaggerated but still ends up having the same effect: the rocket, like the runner, loses control authority and ends up a fair bit more sideways than intended. When rockets find themselves tilting more than a few degrees off of their vector, they start to bend and flex a lot. When rockets more than minutely bend and flex, they have a tendency to crumple and warp to the point that they will literally break into pieces a bit like a partially cooked spaghetti noodle.

A spectacular panorama of Falcon Heavy Flight 2 prior to lifting horizontal for an April 10th launch attempt. (Pauline Acalin)
Falcon Heavy was lifted vertical by the transporter/erector while photographers were setting up remote cameras. (Pauline Acalin)

Those same forces act on Falcon Heavy quite a bit differently than they do on a single Falcon 9, but the principle remains the same: sideways booster = bad news. The wind wins this round but SpaceX will be ready for another attempt today. Likely a strategic choice, Wednesday’s launch attempt was called off just shy of 20 minutes before propellant loading began, dramatically simplifying the process of turning Falcon Heavy around for another launch attempt.

Tune in later today for another exciting day of Falcon Heavy photos and prelaunch operations as photographers – including Teslarati’s Pauline Acalin and Tom Cross – return to Pad 39A to replace camera batteries and generally ogle an elegant 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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Elon Musk

Elon Musk’s Biggest Revelations on AI, Robots, and the Future of Work from the Moonshots Podcast

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Elon Musk’s appearance on the Moonshots with Peter Diamandis podcast was packed with bold predictions, candid admissions, and surprising tech insights. The nearly three-hour conversation covered everything from artificial intelligence to humanoid robots, geopolitics, and the future of work. Here are the top 10 most intriguing takeaways:

  1. Aggressive AGI Timeline Predictions

    Musk offered a detailed view on when artificial general intelligence (AGI) could emerge, suggesting it may arrive sooner than many expect,  emphasizing both transformative potential and risks.  

  2. U.S. vs. China in the AI Race

    He discussed the strategic competition between the United States and China over AI development, noting that geopolitical dynamics will shape how and who leads in the next decades.  

  3. Future of Job Markets

    Musk touched on how AI and automation could reshape employment, predicting massive boosts in productivity alongside potential disruptions in traditional work structures.  

  4. Clean Energy Transition

    A recurring theme was the role of clean energy in future economies, with Musk reiterating the importance of scaling sustainable power generation and storage.  

  5. Humanoid Robots Are Coming

    On the podcast, Musk elaborated on Tesla’s work on humanoid robots, hinting at timelines and applications that go beyond factories to general-purpose assistance.

  6. Tesla Roadster “Last Human-Driven Car”

    Outside the core discussion topics, Musk teased features of the upcoming Tesla Roadster — calling it “the best of the last of the human-driven cars” and suggesting safety won’t be its main selling point.  

  7. The Role of AI in Clean Energy and Robotics

    Linking AI to both energy optimization and robotics, Musk explained how smarter systems could accelerate decarbonization and task automation across industries.  

  8. U.S. Innovation Leadership

    Musk argued that maintaining American leadership in key tech sectors like AI, space, and robotics should be a national priority, with thoughtful policy and investment.  

  9. Job Creation vs. Job Elimination

    While acknowledging automation’s disruptive effects, he also outlined scenarios where new industries and opportunities could emerge, particularly in AI, space, and advanced manufacturing.  

  10. Long-Term Vision for Humanity

    Throughout the conversation, Musk revisited his long-term philosophical views — including a belief in humanity’s responsibility to become a multi-planetary and technologically empowered species.  

Whether you agree with Musk’s optimism or not, the podcast offers a window into the thinking of one of the most influential figures in tech today, in and why his visions continue to spark debate and inspiration.

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Elon Musk

Starlink achieves major milestones in 2025 progress report

Starlink wrapped up 2025 with impressive growth, adding more than 4.6 million new active customers and expanding service to 35 additional countries, territories, and markets.

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Credit: Starlink/X

Starlink wrapped up 2025 with impressive growth, adding more than 4.6 million new active customers and expanding service to 35 additional countries, territories, and markets. The company also completed deployment of its first-generation Direct to Cell constellation, launching over 650 satellites in just 18 months to enable cellular connectivity.

SpaceX highlighted Starlink’s impressive 2025 progress in an extensive report.

Key achievements from Starlink’s 2025 Progress

Starlink connected over 4.6 million new customers with high-speed internet while bringing service to 35 more regions worldwide in 2025. Starlink is now connecting 9.2 million people worldwide. The service achieved this just weeks after hitting its 8 million customer milestone.

Starlink is now available in 155 markets, including areas that are unreachable by traditional ISPs. As per SpaceX, Starlink has also provided over 21 million airline passengers and 20 million cruise passengers with reliable high-speed internet connectivity during their travels.

Starlink Direct to Cell

Starlink’s Direct to Cell constellation, more than 650 satellites strong, has already connected over 12 million people at least once, marking a breakthrough in global mobile coverage.
Starlink Direct to Cell is currently rolled out to 22 countries and 6 continents, with over 6 million monthly customers. Starlink Direct to Cell also has 27 MNO partners to date.

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This year, SpaceX completed deployment of the first generation of the Starlink Direct to Cell constellation, with more than 650 satellites launched to low-Earth orbit in just 18 months. Starlink Direct to Cell has connected more than 12 million people, and counting, at least once, providing life-saving connectivity when people need it most,” SpaceX wrote.

starlinkProgressReport_2025 by Simon Alvarez

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Elon Musk

Starlink passes 9 million active customers just weeks after hitting 8 million

The milestone highlights the accelerating growth of Starlink, which has now been adding over 20,000 new users per day.

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Credit: Starlink/X

SpaceX’s Starlink satellite internet service has continued its rapid global expansion, surpassing 9 million active customers just weeks after crossing the 8 million mark. 

The milestone highlights the accelerating growth of Starlink, which has now been adding over 20,000 new users per day.

9 million customers

In a post on X, SpaceX stated that Starlink now serves over 9 million active users across 155 countries, territories, and markets. The company reached 8 million customers in early November, meaning it added roughly 1 million subscribers in under seven weeks, or about 21,275 new users on average per day. 

“Starlink is connecting more than 9M active customers with high-speed internet across 155 countries, territories, and many other markets,” Starlink wrote in a post on its official X account. SpaceX President Gwynne Shotwell also celebrated the milestone on X. “A huge thank you to all of our customers and congrats to the Starlink team for such an incredible product,” she wrote. 

That growth rate reflects both rising demand for broadband in underserved regions and Starlink’s expanding satellite constellation, which now includes more than 9,000 low-Earth-orbit satellites designed to deliver high-speed, low-latency internet worldwide.

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Starlink’s momentum

Starlink’s momentum has been building up. SpaceX reported 4.6 million Starlink customers in December 2024, followed by 7 million by August 2025, and 8 million customers in November. Independent data also suggests Starlink usage is rising sharply, with Cloudflare reporting that global web traffic from Starlink users more than doubled in 2025, as noted in an Insider report.

Starlink’s momentum is increasingly tied to SpaceX’s broader financial outlook. Elon Musk has said the satellite network is “by far” the company’s largest revenue driver, and reports suggest SpaceX may be positioning itself for an initial public offering as soon as next year, with valuations estimated as high as $1.5 trillion. Musk has also suggested in the past that Starlink could have its own IPO in the future. 

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