Space
Mars exploration in focus as Europe prepares ExoMars Rover for search of life
2020 may be the year humanity takes its biggest step toward finding evidence of life beyond Earth. NASA and the European Space Agency (ESA) are each working on its own rover that will roam Mars’s surface in search of life.
The ExoMars mission is Europe’s first Mars rover. Named after British DNA pioneer Rosalind Franklin, the golf cart-sized robot is approximately one-third the size of NASA’s planned Mars 2020 rover and will look for signs that life might have existed on Mars.
Both rovers will act as remote scientists, beaming back a wealth of data and images to Earth.
Mars 2020 will collect Martian samples for eventual return to Earth sometime in the future, while ExoMars will use its unique drill to burrow below the surface. Here, the rover will find pristine samples that were shielded from the harsh radiation bombarding Mars’s surface. Scientists are hopeful that below the surface is where we could find our first evidence of life.
A Rover’s Purpose
Mars is a hostile place. Because its atmosphere is much thinner than Earth’s, life as we know it would have a difficult time surviving on the surface.
Billions of years ago, the surface of Mars was probably quite similar to that of Earth. However, that changed when Mars lost its magnetic field, which stripped its atmosphere, and exposed its surface to intense radiation. All of which made survival above ground incredibly challenging.
Historically, Mars missions have searched for signs of life on the planet’s surface, usually at places where there are signs of ancient water. That’s because this is typically where we find life on Earth.
But since we haven’t found life on the planet’s surface yet, mission scientists propose we need to dig deeper. There may be some microbial Martians underground.
The ExoMars rover (and accompanying lander) are a follow-on to ESA’s ExoMars Orbiter mission which reached Mars in 2016. That initial mission consisted of two parts: the Trace Gas Orbiter (TGO) and the Schiaparelli landing demonstrator.
Landing on Mars
TGO made it to Mars and is doing great, however, Schiaparelli didn’t fare so well — the lander crashed during its descent to the Martian surface.
Landing a probe on Mars is not easy. To safely navigate the tenuous Martian atmosphere requires a combination of sophisticated landing gear, including heat shields, retrorockets, and even giant, inflatable airbags.
Despite the crash landing, Schiaparelli achieved its goal as a technology demonstrator. It also showed that the team needed to revamp the landing system before the rover launches. But, with less than a year till liftoff, the rover team is struggling with an established piece of landing architecture: parachutes.
In order to slow the rover down, the mission requires multiple parachutes — one 15 meters (49 feet) in diameter and one 35 meters (115 feet).
As the rover begins its descent, atmospheric drag will slow the craft from around 21 000 km/h (13,048 mph) to 1700 km/h (1,056 mph). That’s when the first parachute will deploy. About 20 seconds later, at about 400 km/h (248 mph), the second chute will deploy. Lastly, the braking engines will kick in about 1 km (or half a mile) above the ground, enabling the rover land safely on the Martian surface.
The entire sequence takes just six minutes.
Parachute Troubles
During high-altitude testing conducted earlier this year, the craft’s parachutes ripped as soon as they deployed. ESA engineers made several adjustments, including reinforcing both the parachutes and their storage bags with Teflon to make them deploy easier. The chutes are still tearing.
Now the agency is turning to NASA for help. ESA engineers are teaming up with the folks at the Jet Propulsion Laboratory, to put the enhanced parachutes through months of rigorous testing.
In the meantime, the rover team is putting its hardware through a round of thermal testing. For 18 days it will be subjected to the same harsh temperature conditions experienced on Mars.
The parachutes are expected to finish testing sometime in April 2020; they will then be integrated with the rover and shipped to the launch site in Kazakhstan. However, if any part of the mission misses its deadline, the entire project could be sidelined until the next favorable Mars launch window — in 2022.
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Elon Musk
SpaceX confirms third massive compute deal at Colossus data center
SpaceX confirmed today that it has officially signed its third massive compute deal, providing compute at its Colossus data center in Southaven, Mississippi.
Reflection AI will gain immediate access to NVIDIA GB300 chips at SpaceX’s Colossus 2 data center. In return, Reflection will pay SpaceX $150 million per month starting on July 1, with total payments reaching approximately $6.3 billion if the contract runs through its duration, which is until 2029. Either party can terminate the agreement with 90 days’ notice after the initial three-month period.
CNBC first reported the deal.
🚨 SpaceXAI has agreed to a new compute deal with Reflection AI.
Reflection gets access to NIVIDIA GB300s, and will pay $150M per month to SpaceXAI for the compute. pic.twitter.com/bNPare8U5u
— TESLARATI (@Teslarati) June 22, 2026
This latest partnership highlights SpaceX’s strategy of commercializing its massive Colossus supercomputing infrastructure, originally developed to power Elon Musk’s Grok AI models. The company has rapidly expanded its customer base in the AI sector following its February 2026 merger with xAI, a transaction that valued the combined entity at $1.25 trillion.
SpaceX has previously signed significant compute deals with other major players.
It granted Anthropic exclusive access to the full capacity of its Colossus 1 data center, which exceeds 300 megawatts and includes over 220,000 NVIDIA GPUs. Details from SpaceX’s IPO filings indicate Anthropic will pay $1.25 billion per month through May 2029, potentially generating around $45 billion over the term of the deal.
Additionally, Google agreed to pay SpaceX $920 million per month for compute capacity from October 2026 through June 2029. This 32-month period will provide Google access to roughly 110,000 NVIDIA GPUs, along with supporting processors and memory. Capacity ramps up through September at a reduced fee, with termination options after the first year.
SpaceXA also established arrangements for computing power with Cursor, an AI coding startup. SpaceX acquired them in a $60 billion all-stock deal.
These arrangements position SpaceX’s collective position as an AI infrastructure powerhouse with high-margin revenue potential. The Google deal alone could generate nearly $29.5 billion over its term, while the Reflection contract adds another $6.3 billion.
Combined with the Anthropic arrangement, SpaceX stands to realize tens of billions in revenue from compute leasing in the coming years, which diversifies beyond SpaceX’s traditional rocket launches and Starlink operation.
The deals underscore growing demand for advanced AI training and inference capacity amid chip shortages and surging model development needs. Reflection, valued at $25 billion and focused on “American open intelligence” with government and national security ties, cited recent restrictions on closed models as validation for open-source approaches.
For SpaceX, the partnerships transform capital-intensive data centers into flexible revenue sources while supporting its broader AI ambitions after the company has gone public.
Elon Musk
Elon Musk responds to SpaceX’s ESG rating and says its rockets won’t go electric
It is safe to say SpaceX won’t be going for electric rockets anytime soon.
In a characteristically blunt reply on X, SpaceX frontman Elon Musk stated, “Unfortunately, electric rockets are impossible,” following reports that MSCI had assigned SpaceX its lowest possible ESG rating of CCC.
The assessment, issued just this past week, coinciding closely with SpaceX’s public market debut, placed the company on par with nations like Russia in sustainability scoring and cited significant risks in environmental, social, and governance areas.
MSCI flagged SpaceX’s exposure to rocket emissions and other operational impacts, alongside governance concerns such as concentrated control by Musk and limited shareholder protections. Musk’s terse comment directly addressed the environmental pillar, underscoring a core physical constraint that ESG frameworks often overlook when evaluating high-thrust industries.
Unfortunately, electric rockets are impossible
— Elon Musk (@elonmusk) June 21, 2026
Electric propulsion systems do exist and are widely used in space. Ion thrusters and Hall-effect thrusters accelerate ionized propellant, typically xenon or krypton, using electric fields, achieving very high specific impulse, often exceeding 3,000 seconds compared to roughly 300–450 seconds for chemical rockets.
This efficiency makes them ideal for satellite station-keeping, orbit raising, and deep-space missions where low thrust over long durations is sufficient. SpaceX’s own Starlink satellites employ electric propulsion for these purposes.
However, launching from Earth’s surface demands something entirely different: enormous thrust delivered rapidly to overcome gravity and atmospheric drag. A typical orbital-class booster must generate thrust far exceeding its weight, often in the millions of Newtons within seconds.
Chemical rockets achieve this through exothermic combustion of dense propellants, producing high-mass-flow, high-velocity exhaust. Electric systems, by contrast, expel very small amounts of mass at extremely high speeds. Generating equivalent thrust would require impractical onboard power levels, massive energy storage or generation systems, and prohibitive added mass, rendering the approach infeasible with current or near-term technology.
Musk has previously expressed a similar sentiment, noting a desire for electric orbital rockets while acknowledging the inescapable requirements of Newton’s third law and energy delivery. The distinction is clear: electric propulsion excels once a vehicle is already in space; it cannot replace the high-thrust chemical phase required to reach orbit from the ground.
The episode illustrates broader critiques of ESG ratings. Proponents argue they incentivize better risk management and long-term sustainability. Detractors, including Musk—who has previously called ESG a “scam”—contend that such metrics can penalize essential activities when no practical alternative exists, potentially discouraging innovation in sectors like space access.
Elon Musk dubs the S&P 500 ESG as “outrageous scam” after Tesla gets booted from index
SpaceX has sought to mitigate launch-related impacts through reusability: Falcon 9 boosters have flown more than 30 times in some cases, dramatically lowering the manufacturing and emissions burden per kilogram delivered to orbit. Starship’s design further emphasizes rapid reusability and methane propellant, which can theoretically be produced via sustainable pathways.
Ultimately, Musk’s remark serves as a reminder that certain engineering realities persist regardless of scoring systems. As humanity expands its presence in space for communications, science, and exploration, balancing genuine environmental progress with technological necessity remains a central challenge.
ESG frameworks may evolve, but the fundamental limits of electric launch propulsion are unlikely to change soon.
Investor's Corner
SpaceX is launching a secret spacecraft that could change how things are made in space
SpaceX’s secret disk-shaped Starfall capsule is targeting a market no reentry vehicle has cracked.
SpaceX is targeting Tuesday, June 23 for the first flight of Starfall, a reentry capsule the company has developed almost entirely in private. The Falcon 9 launch window opens at 6:43 a.m. ET from Space Launch Complex 40 at Cape Canaveral Space Force Station, with a backup window available the same time on June 24. SpaceX has made no public announcement about the vehicle, only providing launch details. Everything known about it has come through FAA and FCC regulatory filings.
What makes Starfall different starts with its shape. Rather than the traditional cone used by Dragon and every other cargo return capsule in operation, Starfall is a flat disk that measures roughly 10.2 feet (3.1 meters) wide and just 2.5 feet (0.75 meters) tall, and weighing 4,630 pounds (2,100 kg) and capable of returning up to 2,200 pounds (1,000 kilograms) of payload from orbit. The disk geometry maximizes structural efficiency and payload volume relative to mass, and the heat shield mechanically jettisons just before splashdown, allowing recovery teams to retrieve both the capsule and the shield separately from the Pacific Ocean.
The difference with Starfall from existing competitors, such as Varda Space Industries, which has largely built the orbital manufacturing market and returns heavy payloads per flight is that Starfall’s specification is roughly 30 times more per mission, and is designed to be mass-produced and launched on either Falcon 9 or Starship. That combination of volume and launch access is something no standalone startup can replicate, and it puts SpaceX in direct competition with the companies that currently pay it to reach orbit.
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The intended market is orbital manufacturing: pharmaceuticals, protein crystals, semiconductors, and advanced optical fiber that physically cannot be produced in the presence of gravity. FAA documents describe Starfall’s long-term purpose as building a “self-sustaining commercial in-space manufacturing market” and as a potential successor to the industrial capabilities of the International Space Station, which is set to retire in the late 2020s. Military rapid global cargo delivery is a parallel application under active discussion with the Pentagon.
The reason some industries seek manufacturing in space comes down to gravity. On Earth, gravity causes materials to settle, separate, and deform during production. In microgravity, those constraints disappear.
SpaceX’s already controls launch access, which means it currently functions as the landlord for every competitor in the orbital manufacturing return space. Starfall converts that landlord position into vertical ownership, and it would no longer just carry other companies’ capsules to orbit, but rather operate the capsule, own the return logistics, and capture the service revenue directly. Viewed alongside Starlink, Colossus, and the xAI merger, Starfall fits a consistent pattern: SpaceX identifying infrastructure layers that others depend on and moving to own them outright. Orbital manufacturing return is the next layer on that list.
If Tuesday’s reentry, parachute sequence, and recovery demonstration goes as planned, the second FAA-approved test flight follows. A successful pair of demos would position SpaceX to begin offering Starfall as a commercial service, likely first to pharmaceutical and materials science customers before scaling toward the military and broader manufacturing segments.