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DeepSpace: Europe reveals Mars sample return spacecraft as SpaceX builds Starships

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The European Space Agency (ESA) revealed a concept for a spacecraft that would work alongside NASA to return samples of Martian soil to Earth. (ESA)

Eric Ralph · May 28th, 2019

Welcome to the latest edition of DeepSpace! Each week, Teslarati space reporter Eric Ralph hand-crafts this newsletter to give you a breakdown of what’s happening in the space industry and what you need to know. To receive this newsletter (and others) directly and join our member-only Slack group, give us a 3-month trial for just $5.

On May 27th, the European Space Agency (ESA) published updated renders of a proposed spacecraft, called the Earth Return Orbiter (ERO). ERO would be the last of four critical elements of a joint NASA-ESA Mars sample return mission, meant to return perhaps 1-5 kg (2-11 lb) of Martian samples to scientists on Earth. In a best-case scenario, such a sample return is unlikely to happen before the tail-end of the 2020s and will probably slip well into the 2030s, barring any unexpected windfalls of funding or political support.

Enter SpaceX, a private American company developing Starship/Super Heavy – a massive, next-generation launch vehicle – with the goal of landing dozens of tons of cargo and just as many humans on Mars as few as 5-10 years from now. The radically different approaches of SpaceX and NASA/ESA are bound to produce equally different results, while both are expected to cost no less than $5B-$10B to be fully realized. What gives?

The high price of guaranteed success

  • As proposed, the Mars sample return mission will be an extraordinary technical challenge.
    • At a minimum, the current approach involves sending a single-stage-to-orbit (SSTO) rocket from Earth to Mars, landing the SSTO with extreme accuracy on the back of a new Mars lander, deploying a small rover to gather the sample container, loading that container onto the tiny rocket, launching said rocket into Mars orbit, grabbing the sample with large orbiter launched from Earth, and returning said sample to Earth where it will reenter the atmosphere and be safely recovered.
  • This downright Rube Golberg machine-esque architecture is nevertheless the best currently available with current mindsets and hardware. It’s also likely the only way NASA or ESA will independently acquire samples of Mars within the next few decades, barring radical changes to both the mindsets and technologies familiar and available to the deeply bureaucratic spaceflight agencies.
  • However, this is by no means an attempt to downplay the demonstrated expertise and capabilities of the space agencies and their go-to contractors. Both ESA and NASA have a decades-long heritage of spectacular achievements in robotic space exploration, reaching – however briefly, in some cases – almost every major planet and moon in the solar system.
    • The NASA-supported Jet Propulsion Laboratory (JPL) remains a world-leading expert of both designing, building, and landing large, capable, and long-lived rovers/landers on the surface of Mars. JPL also has a track record of incredible success with space-based orbiters, including Cassini (Saturn), Magellan (Venus), Galileo (Jupiter), Voyager (most planets, now in interstellar space), Stardust (comet sample return), Mars Reconnaissance Orbiter (MRO, Mars orbiter) and more.
  • This success, however, can often come with extreme costs. NASA’s next Mars rover – essentially a modified copy of the Curiosity rover currently operating on Mars and a critical component of the proposed sample return – is likely to cost more than $2B, while Curiosity cost ~$2.5B. The Cassini Saturn orbiter cost around ~$3.5B for 15 years of scientific productivity. ESA’s Rosetta/Philae comet rendezvous cost at least $2B total. In the scheme of things, it would be hard to think of a more inspiring way to spend that money, but the fact remains that these missions are extremely expensive.

High risk, high reward

  • The price of missions like those above may, in fact, be close to their practical minimum, at least relative to the expectations of those footing the bill. However, it’s highly likely that similar results could be achieved on far tighter budgets, another way to say that far more returns could potentially be derived from the same investment.
    • The easiest way to explain this lies in the fact that the governments sponsoring and funding ESA and NASA have grown almost dysfunctionally risk-averse, to the extent that failure really isn’t an option in the modern era. Stakeholders – often elected representatives – expect success and often demand a guaranteed return on their support before choosing to fight for a given program’s funding.
    • As it turns out, an unwillingness to accept more than a minute amount of risk is not particularly compatible with affordably attempting to do things that are technically challenging and have often never been done before. That happens to be a great summary of spaceflight.
    • As risk aversion and the need for guaranteed success grew hand-in-hand, a sort of paradox formed. As politicians strove to ensure that space agency funding was efficiently used, space agencies became far more conservative (minimizing results and the potential for leaps forward) and the cost of complex, capable spacecraft grew dramatically.
    • The end result: spacecraft that are consistently reliable, high-performance, derivative, and terrifyingly expensive.
  • SpaceX is in many ways an anathema of the low-risk, medium-reward, high-cost approach that government space agencies and their dependent contractors have gravitated towards over the last 40-50 years. Instead, SpaceX accepts medium to high risk to attain great rewards at a cost that space agencies like NASA and ESA are often unable to accept as possible after decades of conservatism.
    • This is the main reason that it’s possible that NASA/ESA and SpaceX will both succeed in accomplishing goals at a dramatically disproportionate scale with roughly the same amount of funding.
    • If NASA/ESA bite the bullet and begin to seriously fund their triple-launch Mars Sample Return program, the missions will take a decade or longer and cost something like $5 million per gram of soil returned to Earth, but success will be all but guaranteed.
    • Both SpaceX’s Starship/Super Heavy and Mars colonization development programs run significant risks of hitting major obstacles, suffering catastrophic failures, and could even result in the death of crew members aboard the first attempted missions to Mars.
    • For that accepted risk, the rewards could be unfathomable and the costs revolutionary. SpaceX could very well beat the combined might of ESA and NASA to return large samples of Martian soil, rock, and water to Earth, all while launching ~100,000 kg into Martian orbit instead of the sample return’s ~10 kg.
    • In a best-case scenario, SpaceX could land the first uncrewed Starship on Mars as early as 2022 or 2024. Barring some unforeseen catastrophe or the company’s outright collapse, that first uncrewed Mars landing might happen as late as the early 2030s, around the same time as NASA and ESA’s ~10kg of Mars samples will likely be reentering Earth’s atmosphere.
  • Regardless of which approach succeeds first, space exploration fans and space scientists will have a spectacular amount of activity to be excited about over the next 10-20 years.
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– Eric
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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’s Boring Company has big plans for Las Vegas by year’s end

Elon Musk’s Boring Company says Vegas Loop stations will double by year end once again.

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10 hours ago

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September 14, 2026

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the boring company's vegas loop entrance

The Boring Company says the Vegas Loop’s station count will double by the end of the year, tying the target to a hiring push for drivers and operations managers in Las Vegas. “Vegas Loop is getting bigger – the station count will double by end of year!” the company wrote in a post on X, attaching listings for a Loop driver and a senior Loop operations manager.

The number checks out against what’s already public, with the Vegas Loop currently running 14 operational stations, while the Boring Company’s own project page lists 28 as the target for the end of 2026.

Much of that growth is tied to tunnels that are already built and waiting on an opening date. A roughly two-mile dual tunnel system under Paradise Road, connecting Westgate to a planned station at 4744 Paradise Road, is expected to open in stages over the coming weeks, Las Vegas Convention and Visitors Authority chief executive Steve Hill told the Review-Journal last week. New stations at 4744 Paradise, Virgin Hotels Las Vegas, and the former Gordon Biersch site would come online with it, several of them built to speed up rides to Harry Reid International Airport ahead of Formula 1’s Las Vegas Grand Prix.

Clark County entitled Vegas Loop for 123 stations after approving 19 more in August, as Teslarati reported at the time. Entitlement and construction move at different speeds on this project, so county approval alone does not guarantee a station opens on any particular schedule.

Clark County approved 18 additional stations back in 2023, part of a plan that pushed the system’s target to 69 stations across 65 miles, doubling the network on paper for the first time. The target kept climbing after that, to roughly 93 stations by the end of that year and 104 by last year, before August’s vote pushed it to 123. This week’s announcement is the first time that doubling language has been attached to stations actually running rather than stations merely approved on a county map.

Ridership gives some sense of what a denser network could carry. Boring Company executive Mike Baier said in July that the Vegas Loop already moves around 40,000 passengers on busy convention days, a total that tops most light rail systems in the country despite the system running on a fraction of its planned tunnel mileage. Company leadership has projected ridership could triple or quadruple once the airport connector tunnels fully open.

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Boring Company did not say which stations beyond those already under construction would open by year end, or whether the hiring push points to a fleet expansion alongside the new stops.

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Tesla looks to expand into new Asian market, strengthening presence

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18 hours ago

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September 14, 2026

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Credit: Tesla Asia | X

Tesla is looking to expand into a new Asian market, strengthening its presence in a region that has been bullish on electric vehicles as a whole.

Tesla officially filed to establish a subsidiary of its business in Vietnam, a report from Reuters suggests. Tesla named the entity “Tesla Motors Vietnam Limited Liability Company.”

The planned entrance into the Vietnamese market is a good sign and move for Tesla, as it has become one of the fastest-growing EV markets in Southeast Asia. It is already among the leaders in the region in both volume and electrification rate. In the first half of this year, Vietnam led Southeast Asia in battery-electric passenger car sales at about 116,000 units, up about 71 percent year over year.

Currently, Vietnamese EV drivers rely on VinFast’s V-Green network, which has about 150,000 ports, but these are primarily reserved for VinFast vehicles. Public third-party charging is fragmented and unreliable for those who do not own chargers that are dedicated to a certain manufacturer’s vehicles.

Tesla has had mixed results in Asia as a whole, and as China remains the core part of its story in Asia, the company is evidently working on expanding its footprint on the continent. Tesla’s domestic retail deliveries fell about 12 percent year over year through the first eight months of 2026.

Model Y remains a standout individual product, holding its position as one of, if not the, best-selling vehicles in the world. However, Model 3 has been weaker than it has been in past years.

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Gigafactory Shanghai, the company’s Chinese production facility, still performs very well. Wholesale volumes in terms of exports have more than doubled and now exceed domestic retail sales; Giga Shanghai builds vehicles for Europe, South Korea, Japan, Australia, and other markets. South Korea has been an explicit bright spot, with registrations doubling year-to-date and Tesla frequently appearing as the top imported brand.

Tesla just did something in South Korea that no foreign carmaker has ever done

Tesla’s entrance into Vietnam signals a broader effort to take over the Asian market and grab more market share from rivals.

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Elon Musk’s companies made up with Apple but OpenAI still on the hook

Elon Musk’s X Corp and SpaceXAI dropped their Apple antitrust suit, leaving OpenAI as defendant.

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22 hours ago

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September 14, 2026

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X Corp and SpaceXAI, Elon Musk’s social platform and AI venture, have dropped Apple from the antitrust lawsuit that they filed against the iPhone maker and OpenAI last year. In a filing in the U.S. District Court for the Northern District of Texas, attorneys for X and SpaceXAI moved to dismiss the Apple portion of the case, first reported by Reuters. The filing does not explain why the companies are dropping Apple or say whether a settlement was reached.

X and SpaceXAI say they intend to keep pursuing the case against OpenAI, which remains a defendant. That resolves the dispute with one company while leaving the core allegation intact against the other, with no public accounting of what changed in between.

The lawsuit dates to August 2025, when xAI and X sued Apple and OpenAI, arguing that Apple’s decision to make ChatGPT the only generative AI chatbot built into iOS gave OpenAI an unfair structural advantage. The complaint claimed ChatGPT controlled roughly 80 percent of the chatbot market at the time, while Grok held only a few percent. It sought billions of dollars in damages and asked the court to unwind the arrangement.

Elon Musk’s xAI and X file antitrust suit against Apple and OpenAI over AI exclusivity

The filing followed weeks of Musk publicly complaining that Grok and X weren’t appearing in Apple’s “Must Have” App Store section, though Grok ranked second in the Productivity category and X ranked first in News at the time. He accused Apple of “playing politics” and warned of immediate legal action before following through days later.

Apple and OpenAI tried to get the case thrown out, but a federal judge denied both motions in November, ruling the dispute was better suited to summary judgment than an early dismissal. That decision sent the case into discovery, which is presumably what led to Monday’s filing.

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The timing is notable given how Musk’s sentiment toward Apple has shifted, with Musk noting that he was open to letting Grok power a revamped Siri after a user suggested Apple replace its aging assistant with xAI’s model.

xAI, the AI venture Musk folded into X Corp last year, has since combined with SpaceX under the SpaceXAI brand. That structure now puts X, Grok and SpaceX’s rocket and satellite businesses under one roof as Musk pushes his AI ambitions beyond chatbots.

OpenAI remains the sole defendant going forward, and Musk’s companies have not said if there’s any changes to those original claims. Apple and OpenAI did not immediately respond to requests for comment on the filing.

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