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
How much of SpaceX will Elon Musk own after IPO will surprise you
SpaceX’s IPO filing confirms Musk will maintain his voting power to make key decisions for the company.
Elon Musk will retain dominant voting control of SpaceX after it goes public, according to the company’s IPO prospectus that was filed with the SEC. The filing reveals a dual-class equity structure giving Class B shareholders 10 votes each, concentrating power with Musk and a handful of other insiders, while Class A shares sold to public investors carry one vote.
Musk holds approximately 42% of SpaceX’s equity and controls roughly 79% of its votes through super-voting shares. He will simultaneously serve as CEO, CTO, and chairman of the nine-member board after the listing. Beyond that, the filing includes provisions that may limit shareholders’ influence over board elections and legal actions, forcing disputes into arbitration and restricting where they can be brought.
The case for Musk holding this level of control is grounded in SpaceX’s actual history. The company’s most important bets, from reusable rockets to a global satellite internet constellation, were decisions that ran against conventional aerospace thinking and would likely have faced resistance from a board accountable to investor gains. Fully reusable rockets were considered economically irrational by established industry players for years. Starlink, which now generates over $4 billion in annual operating profit, was widely dismissed as financially unviable when it was proposed. The argument for concentrated founder control seems straightforward, and the decisions that built SpaceX into what it is today required someone willing to ignore consensus and absorb years of losses.
SpaceX files confidentially for IPO that will rewrite the record books
For context, Musk’s position is significantly more dominant than Zuckerberg’s at Meta. The comparison with Tesla is also worth noting. When Tesla did its IPO in 2010, it did not issue dual-class shares. Musk has only recently pushed for enhanced voting protection, proposing at least 25% control at Tesla in 2024 after selling shares to fund his Twitter acquisition left him with around 13%.
SpaceX has clearly learned from that experience and structured the IPO differently by planning to allocate up to 30% of shares to retail investors, roughly three times the typical norm for a large offering. The roadshow is expected to begin the week of June 8, with a Nasdaq listing rumored to be a $1.75 trillion valuation and a $75 billion raise.
Elon Musk
ARK’s SpaceX IPO Guide makes a compelling case on why $1.75T may not be the ceiling
ARK Invest breaks down six reasons SpaceX’s $1.75 trillion IPO valuation may be justified.
ARK Invest, which holds SpaceX as its largest Venture Fund position at 17% of net assets, has published a detailed investor guide to why a SpaceX IPO may be grounded in a $1.75 trillion target valuation.
The financial case starts with Starlink, SpaceX’s satellite internet constellation, which has surpassed 10 million active subscribers globally as of early 2026, with 2026 revenue projected to exceed $20 billion. ARK’s research puts the total satellite connectivity market opportunity at roughly $160 billion annually at scale, and Starlink is adding customers faster than any telecom network in history. That growth alone would justify a substantial valuation.
Additionally, ARK notes that SpaceX has reduced the cost per kilogram to orbit from roughly $15,600 in 2008 to under $1,000 today through reusable Falcon 9 hardware. A fully operational Starship targeting sub-$100 per kilogram would represent a significant cost decline and open markets that do not currently exist. SpaceX executed a staggering 165 missions in 2025 and now accounts for approximately 85% of all global orbital launches. That infrastructure position took decades to build and would be nearly impossible to replicate at comparable cost.
SpaceX officially acquires xAI, merging rockets with AI expertise
The February 2026 merger with xAI added a layer to the valuation that straightforward financial models struggle to capture. ARK argues that at sub-$100 launch costs, orbital data centers could deliver compute roughly 25% cheaper than ground-based alternatives, without power grid delays, permitting friction, or land constraints. Musk has stated a goal of deploying 100 gigawatts of AI computing capacity per year from orbit.
The $1.75 trillion figure itself is not a conventional earnings multiple. At roughly 95x trailing revenue, it prices in Starlink’s adoption curve, Starship’s cost trajectory, and the orbital compute thesis together. The public S-1 prospectus, due at least 15 days before the June roadshow, will give investors their first complete look at the financials to test those assumptions. ARK’s position is that the track record earns the benefit of the doubt. Fully reusable rockets were considered unrealistic for years. Starlink was considered financially unviable. Both happened on timelines that surprised skeptics.
Elon Musk
SpaceX wins its first MARS contract but it comes with a catch
NASA awarded SpaceX a $175 million Mars rover contract while the White House proposes cutting the mission.
NASA just signed a $175.7 million contract with SpaceX to launch a Mars rover that the White House is simultaneously trying to defund. The contract, awarded on April 16, 2026, tasks SpaceX’s Falcon Heavy with launching the European Space Agency’s (ESA) Rosalind Franklin rover from Kennedy Space Center in Florida, no earlier than late 2028. It would mark the first time SpaceX has ever sent a payload to Mars.
Under NASA’s Rosalind Franklin Support and Augmentation project, known as ROSA, the agency is providing braking engines for the rover’s descent stage, radioisotope heater units that use decaying plutonium to keep the rover warm on the Martian surface, additional electronics, and a mass spectrometer instrument, as noted by SpaceNews.
Those nuclear heating units are the reason an American rocket was required at all. U.S. export controls on radioisotope technology mean any payload carrying them must launch on a domestic vehicle, which narrowed the field to SpaceX and United Launch Alliance. Falcon Heavy’s pricing made it the practical choice.
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Falcon Heavy debuted in February 2018 and has 11 launches to its record. The rocket has not flown since October 2024, when it sent NASA’s Europa Clipper toward Jupiter. The three-core design, built from modified Falcon 9 first stages, gives it the lift capacity needed for deep space planetary missions that a single Falcon 9 cannot reach.
The Rosalind Franklin rover has been sitting in storage in Europe for years. It was originally due to launch in 2022 as a joint mission with Russia, but Russia’s invasion of Ukraine ended that partnership, leaving the rover built but stranded without a launch vehicle or landing hardware. NASA stepped back in through a 2024 agreement with ESA to rescue the mission. The rover is designed to drill up to two meters below the Martian surface in search of evidence of past life, a science objective no previous mission has attempted at that depth.
The contradiction at the center of this story is hard to ignore. The White House’s fiscal year 2027 budget proposal included no funding for ROSA and did not mention the mission at all in the detailed congressional justification document released April 3.
Musk has long argued that reaching Mars is not optional. “We don’t want to be one of those single planet species, we want to be a multi-planet species.” Whether this particular mission survives Washington’s budget fight, the Falcon Heavy contract means SpaceX is now formally on record as the rocket that could get humanity’s next Mars science mission off the ground.
The timing of this contract carries extra weight given that SpaceX filed confidentially with the SEC in early April and is targeting an IPO roadshow in the week of June 8. It would be the largest public offering in history.