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SpaceX, NASA test escape zipline ahead of Crew Dragon’s astronaut launch debut
As part of continued preparations ahead of SpaceX’s Demonstration-2 mission (DM-2) that will debut Crew Dragon’s ability to support astronaut flight, SpaceX and NASA have successfully tested crew emergency egress (escape) systems at SpaceX’s primary crew launch facilities located at Launch Complex 39-A (LC-39A) at Kennedy Space Center in Florida. The successful verification tests have proven that SpaceX is ready to support crewed launches and preserve human life with effective escape methods, including a zipline mounted basket system that will whisk astronauts away from Crew Dragon and Falcon 9 in the event of a launch pad anomaly.
The formal launch pad escape verification test comes just a month after SpaceX and NASA CCP teams practiced astronaut recovery rehearsals – including emergency astronaut evacuation – from a high-fidelity Crew Dragon mockup capsule aboard the recovery Vessel GO Searcher.
Multiple teams from NASA and SpaceX including personnel from the Astronaut Office at NASA’s Johnson Space Center in Houston, NASA Flight Surgeons, SpaceX systems engineers, Kennedy Aero Medical, and Commercial Crew Program Safety worked together to successfully complete two full-dress rehearsals of different escape methods.
In a Commercial Crew Program (CCP) blog post, NASA CCP launch operations integrator Steve Payne stated that “this demonstration allowed all the various teams responsible for ground operations, system design, ground safety and emergency management to observe and verify the system is ready for operational use.”
The launch pad escape methods practiced at LC-39A simulated evacuation plans that would usher flight and pad crew members to safety should any sort of life-threatening anomaly occur during launch proceedings. Two different versions of escape methods were practiced – a quick emergency evacuation utilizing the zipline system and a less life-threatening situation using an elevator.
Both escape plans require that crew members are able to evacuate the crew access arm and crew-loading level of the Fixed Service Structure (FSS) at LC-39A, located some 265ft in the air. During SpaceX renovations of LC-39A the crew loading platform was moved roughly half a level higher to accommodate the Crew Dragon capsule’s position atop a Falcon 9 booster, as the Crew Dragon stack is far different from and significantly taller than the Space Shuttles that previously flew from LC 39-A.
One exit method demonstrated how both flight and pad crew members could exit the launch pad under non-emergency circumstances. NASA astronauts Bob Behnken and Shannon Walker participated in the exercises and began the first rehearsal at the end of the crew access arm (CAA) – known as a white room – and took an elevator in the FSS to the ground before being escorted to a safe location nearby.
The second rehearsal simulated an emergency (i.e. time-sensitive) egress with active escape alarms and fire suppression systems that required the astronauts and pad crew to escape the launch tower using slide-wire mounted – essentially a serious zipline – basket transport system. This method has been around for decades and during the SpaceX LC-39A renovations some much-needed upgrades were implemented, including a new braking system to control basket descent speed and modifications to allow easier exit from the baskets.
In the blog post, Behnken expressed excitement about the completion of the verification tests, as they bring him and his colleagues one step closer to launching to orbit aboard SpaceX’s Crew Dragon spacecraft. “It’s exciting to have this verification test behind us on our way to the SpaceX Demo-2 mission. Each time today when we headed down the crew access arm, I couldn’t help but think about what it will be like to strap into Dragon on launch day.”
Behnken’s words reflect the anticipation and excitement that is shared by all as we await the historic and triumphant return of human spaceflight from US soil when SpaceX’s Crew Dragon capsule carries astronauts to the International Space Station for the first time. SpaceX CEO, Elon Musk, recently stated that the Crew Dragon capsule (C204) and trunk that will support DM-2 and (hopefully) push SpaceX into a new era of human spaceflight is set to arrive in Florida as early as November 2019. The Falcon 9 booster (B1058) has already completed static fire testing in Texas and is likely already in Florida or set to arrive imminently.
If all goes as planned during Crew Dragon’s upcoming in-flight abort (IFA) test and NASA is able to efficiently complete its myriad of reviews and paperwork, SpaceX should be ready to launch its first astronauts into orbit early next year.
Check out Teslarati’s newsletters for prompt updates, on-the-ground perspectives, and unique glimpses of SpaceX’s rocket launch and recovery processes.
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SpaceX COO Gwynne Shotwell outlined ambitious plans for Starlink Mobile during the company’s August 4 Earnings call, signaling a direct challenge to U.S. wireless giants like AT&T, T-Mobile, and Verizon.
Shotwell noted that the three companies generate roughly $600 billion in combined annual revenue. “I anticipate us to be able to acquire quite a few of their customers because I think our service will be better,” she said. “We will eliminate dead zones leveraging the satellites in orbit. It will be better during any natural disaster… I’m quite excited about Starlink Mobile.”
SpaceX President & COO Gwynne Shotwell on @Starlink Mobile and its impact on Verizon, AT&T and T-Mobile:
“Roughly, between them, $600 billion a year. I anticipate us to be able to acquire quite a few of their customers. Our service will be better. We will eliminate dead zones… pic.twitter.com/UYZUkrGc0L
— Sawyer Merritt (@SawyerMerritt) August 4, 2026
SpaceX intends to combine its satellite constellation with terrestrial infrastructure. The company has acquired about 65 MHz of spectrum from EchoStar and plans to deploy next-generation Starlink Mobile satellites in 2027, with upgraded service targeted for the end of that year.
Shotwell described the enhanced network, leveraging more satellites and spectrum, as potentially “100 times better” than the current direct-to-cell offering, which already supports basic texting and app-based voice/video in coverage gaps through partnerships. She also indicated plans for low-cost cellular base stations that could integrate with existing Starlink dishes, creating a hybrid system for broader capacity in urban, suburban, and rural areas.
For the general public, Starlink Mobile promises significant advantages. Satellite connectivity can fill gaps where traditional cell towers fail, delivering service in remote locations, mountains, or during outages caused by storms, wildfires, or infrastructure damage—conditions in which ground networks often collapse.
Users could enjoy more consistent coverage without relying solely on dense tower builds, potentially at competitive prices as SpaceX scales. The hybrid approach aims to support full mobile services, including higher-speed data, while working with unmodified smartphones over time.
These developments revive long-standing but unfounded rumors of a Musk-developed “Tesla phone.” Speculative claims of a “Pi Phone” or similar device with built-in Starlink connectivity have circulated for years on social media, often featuring fabricated images and details. Elon Musk has repeatedly denied any such plans, stating Tesla has no intention of entering the smartphone market unless forced by extreme circumstances with app stores.
No official product, filings, or development announcements have ever materialized; the rumors remain hoaxes.
The announcement quickly pressured telecom stocks. Shares of AT&T, Verizon, and T-Mobile fell between roughly 2 and 4 percent in after-hours and premarket trading as investors weighed the competitive threat from a hybrid satellite-terrestrial network.
While execution challenges remain—spectrum deployment, infrastructure rollout, and regulatory hurdles—Shotwell’s remarks mark SpaceX’s clearest signal yet of entering the consumer mobile market as a full competitor.
Venture capitalist Chamath Palihapitiya has cautioned investors shorting SpaceX shares, drawing a direct parallel to the intense short-selling pressure Tesla faced in its early public years.
Responding to reports of elevated short interest in the newly public rocket, satellite, and AI company, Palihapitiya noted that similar dynamics played out with Tesla, where aggressive short sellers ultimately “went broke.”
SpaceX (NASDAQ: SPCX) went public on June 12, 2026, in the largest IPO on record, pricing at $135 per share. Shares quickly surged to an all-time high of $225.64 just days later, briefly implying a valuation exceeding $2 trillion. The stock has since retreated sharply amid valuation concerns, lockup expiration fears, and broader market dynamics.
By early August, it traded near $108–$125, representing a roughly 50 percent decline from the peak and bringing the market capitalization closer to the $1.5–1.7 trillion range. On August 4, shares closed up more than 9 percent at $125.33 ahead of earnings before facing pressure in after-hours and premarket trading.
Short interest has climbed dramatically. According to S3 Partners data widely cited in market reports, short positions reached approximately 219.3 million shares by late July, about 34 percent of the limited public float of roughly 640 million shares, and represented a notional value of around $24.6 billion.
Utilization of shares available to borrow hit 95 percent, with borrow fees rising. This level of shorting exceeded the dollar value of short bets against Tesla at the time and built rapidly ahead of two catalysts: the company’s first post-IPO earnings and an August 6 lockup expiration that could free up to 911.5 million additional shares.
CEO Elon Musk has issued warnings of his own. In mid-July, as short interest approached one-third of the float, he posted that “the survival probability of firms who maintain a significant short position in SpaceX over time is very low,” reiterating his view that the company could ultimately be worth more than Earth if it achieves its goals.
On August 4, just before earnings, Musk responded to the latest short-interest data by saying, “I try to warn them, but they just double down.”
SpaceX delivered its first quarterly results as a public company after the close on August 4. Second-quarter revenue rose 92 percent year-over-year to $7.8 billion, beating consensus estimates near $6.8–6.9 billion.
The net loss narrowed to $541 million, or 9 cents per share, better than the roughly 23–24 cent loss expected. Starlink/connectivity contributed about $4.3 billion (up 66 percent), while the AI business generated $2.6 billion (up roughly 250 percent). Capital expenditures were heavy at $18.4 billion, largely tied to AI infrastructure. Management projected a $100 billion annualized revenue run rate by year-end 2026 and outlined a path toward $1 trillion in annual revenue by 2030.
The combination of Chamath’s historical reminder, Musk’s repeated alerts, and the company’s ambitious growth targets underscores the high-stakes debate surrounding SPCX. Short sellers are positioned for near-term supply pressure from the lockup, while long-term bulls point to Starlink scale, Starship progress, and AI compute expansion as reasons the bears may ultimately face the same fate as many early Tesla skeptics.
Investor's Corner
SpaceX and Nvidia team up on Musk’s orbital AI bet
SpaceX revealed a new Nvidia satellite partnership, then Musk pledged an exclusive Nvidia hardware commitment.
SpaceX and Nvidia are now working together on the hardware that will power Musk’s orbital data center ambitions. SpaceX announced on X on Tuesday that it is partnering with Nvidia to design the compute payload for Starmind AI1, the first satellite in a planned constellation built to run AI workloads directly in orbit. Each Starmind satellite will carry Nvidia’s Rubin GPUs and Vera CPUs, according to the post, which included renderings of the payload design.
The announcement landed hours before SpaceX’s first earnings call as a public company, where Musk went further, saying the company has committed to building its AI infrastructure exclusively on Nvidia hardware. “We think the Vera Rubin architecture is the best architecture. We think it’s the best AI computer, and we greatly value our close cooperation and partnership on many levels with Nvidia,” Musk told investors on the call,. “So we’re exclusive to Nvidia.”
Musk said SpaceX plans to deploy Nvidia’s Vera Rubin NVL72 rackscale system, codenamed Kyber, both on the ground and in space. He set a target of 2 gigawatts of compute capacity online by the end of this year, scaling to roughly 10 gigawatts by the end of 2027.
SpaceX’s newest Starmind will make earth data centers obsolete
Starmind has been in development since Musk confirmed the name in June, following an xAI trademark filing that tipped off the project before SpaceX made it official. The idea is massive in scope and instead of moving data down to ground based servers, satellites equipped with onboard processors and large solar arrays would compute AI workloads in orbit and beam results back to Earth. SpaceX has already filed with the FCC for a constellation of up to one million satellites to support the effort, citing constant solar power and the absence of zoning restrictions as advantages over terrestrial data centers.
The Nvidia exclusivity marks a shift in tone from just two weeks ago, when Musk was busy knocking down a report that SpaceX had ordered $52 billion worth of Nvidia GPUs through Foxconn, calling it fake news at the time. The dollar figure in that rumor may have been wrong, but the underlying direction seems correct. SpaceX’s AI division already leases Colossus compute capacity to Anthropic and Google, and Tuesday’s earnings report showed AI revenue climbing sharply as those deals ramp up.
Nvidia shares rose roughly 3% in Tuesday trading on the news, while SpaceX stock climbed nearly 9% during the day before giving back gains after hours as investors digested the earnings report’s capital spending figures.
SpaceX is coming for wireless giants with Starlink Mobile
SpaceX shorts get warned by Musk ally, echoing Tesla’s early struggles
