SpaceX
SpaceX recycles Falcon Heavy’s commercial launch debut to Thurs – here’s why
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.
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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Elon Musk
FCC chair criticizes Amazon over opposition to SpaceX satellite plan
Carr made the remarks in a post on social media platform X.
U.S. Federal Communications Commission (FCC) Chairman Brendan Carr criticized Amazon after the company opposed SpaceX’s proposal to launch a large satellite constellation that could function as an orbital data center network.
Carr made the remarks in a post on social media platform X.
Amazon recently urged the FCC to reject SpaceX’s application to deploy a constellation of up to 1 million low Earth orbit satellites that could serve as artificial intelligence data centers in space.
The company described the proposal as a “lofty ambition rather than a real plan,” arguing that SpaceX had not provided sufficient details about how the system would operate.
Carr responded by pointing to Amazon’s own satellite deployment progress.
“Amazon should focus on the fact that it will fall roughly 1,000 satellites short of meeting its upcoming deployment milestone, rather than spending their time and resources filing petitions against companies that are putting thousands of satellites in orbit,” Carr wrote on X.
Amazon has declined to comment on the statement.
Amazon has been working to deploy its Project Kuiper satellite network, which is intended to compete with SpaceX’s Starlink service. The company has invested more than $10 billion in the program and has launched more than 200 satellites since April of last year.
Amazon has also asked the FCC for a 24-month extension, until July 2028, to meet a requirement to deploy roughly 1,600 satellites by July 2026, as noted in a CNBC report.
SpaceX’s Starlink network currently has nearly 10,000 satellites in orbit and serves roughly 10 million customers. The FCC has also authorized SpaceX to deploy 7,500 additional satellites as the company continues expanding its global satellite internet network.
Elon Musk
NASA watchdog says Starship development delays could affect Artemis timeline
The report noted that several technical milestones still need to be completed before Starship can serve as a crewed lunar lander.
A NASA watchdog report stated that continued development work on SpaceX’s Starship could affect the timeline for the agency’s planned Artemis moon missions. The report noted that several technical milestones still need to be completed before the spacecraft can serve as a crewed lunar lander.
The findings were detailed in a report from NASA’s Office of Inspector General, as noted in a report from Reuters.
NASA selected SpaceX’s Starship in 2021 to serve as the Human Landing System (HLS) for its Artemis lunar program. The vehicle is intended to transport astronauts from lunar orbit to the surface of the Moon and back as part of future Artemis missions.
According to the watchdog report, Starship’s development has experienced roughly two years of schedule delays compared to earlier expectations. Still, NASA is targeting 2028 for the first crewed lunar landing using the Starship lander.
One of the most significant technical milestones for Starship’s lunar missions is in-space refueling.
To support a crewed lunar landing, multiple Starship launches will be required to deliver propellant to orbit. Tanker versions of Starship will transfer fuel to a storage depot spacecraft, which will then refuel the lunar lander.
The report noted that this approach could require more than 10 Starship launches to fully refuel the spacecraft needed for a single lunar landing mission.
NASA officials indicated that demonstrating cryogenic propellant transfer in orbit remains one of the most important technical steps before Starship can be certified for lunar missions.
SpaceX has conducted 11 Starship test flights since 2023 as the company continues developing the fully reusable launch system. A 12th test flight, this time featuring Starship V3, is expected to be held in early April.
Elon Musk
SpaceX weighs Nasdaq listing as company explores early index entry: report
The company is reportedly seeking early inclusion in the Nasdaq-100 index.
Elon Musk’s SpaceX is reportedly leaning toward listing its shares on the Nasdaq for a potential initial public offering (IPO) that could become the largest in history.
As per a recent report, the company is reportedly seeking early inclusion in the Nasdaq-100 index. The update was reported by Reuters, citing people familiar with the matter.
According to the publication, SpaceX is considering Nasdaq as the venue for its eventual IPO, though the New York Stock Exchange is also competing for the listing. Neither exchange has reportedly been informed of a final decision.
Reuters has previously reported that SpaceX could pursue an IPO as early as June, though the company’s plans could still change.
One of the publication’s sources also suggested that SpaceX is targeting a valuation of about $1.75 trillion for its IPO. At that level, the company would rank among the largest publicly traded firms in the United States by market capitalization.
Nasdaq has proposed a rule change that could accelerate the inclusion of newly listed megacap companies into the Nasdaq-100 index.
Under the proposed “Fast Entry” rule, a newly listed company could qualify for the index in less than a month if its market capitalization ranks among the top 40 companies already included in the Nasdaq-100.
If SpaceX is successful in achieving its target valuation of $1.75 trillion, it would become the sixth-largest company by market value in the United States, at least based on recent share prices.
Newly listed companies typically have to wait up to a year before becoming eligible for major indexes such as the Nasdaq-100 or S&P 500.
Inclusion in a major index can significantly broaden a company’s shareholder base because many institutional investors purchase shares through index-tracking funds.
According to Reuters, Nasdaq’s proposed fast-track rule is partly intended to attract highly valued private companies such as SpaceX, OpenAI, and Anthropic to list on the exchange.
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