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Mars as an Earth-like planet in the past not likely, according to new study

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Many of Earth’s citizens have their eyes set on Mars as a planet prime for human colonization, and much of this optimism is based on the idea that the now barren and frozen planet was once full of water and green plant life. Warming things up, as SpaceX CEO Elon Musk has posited on numerous occasions, would theoretically bring Mars back to a more Earth-like state. However, a recent study published in the journal Nature Geoscience has thrown doubts onto this restorative thinking. Rather than a world shaped by flowing rivers and lakes on the surface, the publication suggests that the red planet gained most of its liquid water-suggestive features from moving glaciers and rivers flowing beneath them.

“The southern highlands of Mars are dissected by hundreds of valley networks, which are evidence that water once sculpted the surface… Previous interpretations of the geological record require precipitation and surface water runoff to form the valley networks, in contradiction with climate simulations that predict a cold, icy ancient Mars,” the paper’s abstract states. “Here we present a global comparative study of valley network morphometry…with physical models of fluvial [river-formed], groundwater sapping [erosion] and glacial and subglacial erosion. We found that valley formation involved all these processes, but that subglacial and fluvial erosion are the predominant mechanisms.”

In other words, as theorized in this study by Anna Grau Galofre et al., titled “Valley formation on early Mars by subglacial and fluvial erosion,” Mars’ geographical features were not likely formed by rainfall from an environment similar to ours on Earth. The planet has always been much too cold to support the weather patterns needed to be possible. Of course, that doesn’t mean terraforming is out of the picture, just that it might be a newer state of existence for Mars than we thought.

Image: NASA Goddard Space Flight Center
Mars topography map with false-color additions. | Image credit: NASA/JPL

Notably, Elon Musk took to Twitter this week to discuss his hopes for making things more human-friendly, even if green will be a new color for the planet. “There’s a lot of frozen CO2 & H2O on Mars. Heating the planet will densify the atmosphere. It’s solvable,” Musk tweeted in response to a discussion on the planet’s topography. The CEO has previously explained his plans for making this happen – using nuclear bombs.

“Nuke Mars! T-shirt soon,” he wrote on Twitter last year, subsequently inspiring dozens of shirt designs with the motto to go on sale. “Nuke Mars refers to a continuous stream of very low fallout nuclear fusion explosions above the atmosphere to create artificial suns. Much like our sun, this would not cause Mars to become radioactive,” he later explained. SpaceX currently sells coffee mugs with a Mars image that terraforms when heated in a show of enthusiasm for Musk’s plans.

Another important part of the ‘green’ Mars theory is that it bodes well for the search for ancient extraterrestrial life. NASA’s newest rover Perseverance, currently on its way to the red planet, will be exploring with astrobiology as its main mission. The rover’s landing destination will be a 28-mile-wide crater named Jezero (translation: “lake”) thought to have held water billions of years ago. NASA’s 2012 Curiosity mission found that Mars overall was rich in material that could have potentially supported microbial life, and the Perseverance mission will collect the evidence to back up that claim. That evidence, in the form of samples, will be brought back to Earth in a future mission.

A video published by Anton Petrov gives some further perspective and visuals surrounding this recent study about Mars’ icy vs. green past. You can watch it below:

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Accidental computer geek, fascinated by most history and the multiplanetary future on its way. Quite keen on the democratization of space. | It's pronounced day-sha, but I answer to almost any variation thereof.

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Tesla Semi just got a huge vote of confidence from 300-truck fleet

The confidential meeting marks a major step for the mid-sized carrier in evaluating the electric truck for its regional routes.

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Credit: Tesla

The Tesla Semi is moving closer to broader fleet adoption, with Keller Logistics Group wrapping up a key pre-production planning session with the electric vehicle maker’s team this week. 

The confidential meeting marks a major step for the mid-sized carrier in evaluating the electric truck for its regional routes.

Keller’s pre-production Tesla Semi sessions

Keller Logistics Group, a family-owned carrier with over 300 tractors and 1,000 trailers operating in the Midwest and Southeast, completed the session to assess the Tesla Semi’s fit for its operations. The company’s routes typically span 500-600 miles per day, positioning it as an ideal tester for the Semi’s day cab configuration in standard logistics scenarios. 

Details remain under mutual NDA, but the meeting reportedly focused on matching the truck to yard, shuttle and regional applications while scrutinizing economics like infrastructure, maintenance and incentives.

What Keller’s executives are saying

CEO Bryan Keller described the approach as methodical. “For us, staying ahead isn’t a headline, it’s a habit. From electrification and yard automation to digital visibility and warehouse technology, our teams are continually pressure-testing what’s next. The Tesla Semi discussion is one more way we evaluate new tools against our standards for safety, uptime, and customer ROI. We don’t chase trends, we pressure-test what works,” Keller said. 

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Benjamin Pierce, Chief Strategy Officer, echoed these sentiments. “Electrification and next-generation powertrains are part of a much broader transformation. Whether it’s proprietary yard systems like YardLink™, solar and renewable logistics solutions, or real-time vehicle intelligence, Keller’s approach stays the same, test it, prove it, and deploy it only when it strengthens service and total cost for our customers,” Pierce said. 

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Tesla extends FSD Supervised ride-alongs in Europe by three months

Needless to say, it does appear that FSD fever is starting to catch in Europe. 

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Credit: Grok Imagine

Tesla appears to be doubling down on its European Full Self-Driving (Supervised) push, with the company extending its demo ride-along program by three months until the end of March 2026. The update seems to have been implemented due to overwhelming demand. 

Needless to say, it does appear that FSD fever is starting to catch in Europe. 

Extended FSD demonstrations

Tesla EU Policy and Business Development Manager Ivan Komušanac shared on LinkedIn that the company is offering ride-along experiences in Germany, France and Italy while working toward FSD (Supervised) approval in Europe.

He noted that this provides a great feedback opportunity from the general public, encouraging participants to record and share their experiences. For those unable to book in December, Komušanac teased more slots as “Christmas presents.”

Tesla watcher Sawyer Merritt highlighted the extension on X, stating that dates now run from December 1, 2025, to March 31, 2026, in multiple cities including Stuttgart-Weinstadt, Frankfurt and Düsseldorf in Germany. This suggests that the FSD ride-along program in Europe has officially been extended until the end of the first quarter of 2026. 

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Building momentum for European approval

Replies to Merritt’s posts buzzed with excitement, with users like @AuzyMale noting that Cologne and Düsseldorf are already fully booked. This sentiment was echoed by numerous other Tesla enthusiasts on social media. Calls for the program’s expansion to other European territories have also started gaining steam, with some X users suggesting Switzerland and Finland as the next locations for FSD ride-alongs.

Ultimately, the Tesla EU Policy and Business Development Manager’s post aligns with the company’s broader FSD efforts in Europe. As per recent reports, Tesla recently demonstrated FSD’s capabilities for Rome officials. Reporters from media outlets in France and Germany have also published positive reviews of FSD’s capabilities on real-world roads. 

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Tesla’s six-seat extended wheelbase Model Y L sold out for January 2026

Estimated delivery dates for new Tesla Model Y L orders now extend all the way into February 2026.

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Credit: Tesla China

The Tesla Model Y L seems to be in high demand in China, with estimated delivery dates for new orders now extending all the way into February 2026. 

This suggests that the Model Y L has been officially sold out from the rest of 2025 to January 2026. 

Model Y L estimated delivery dates

The Model Y L’s updated delivery dates mark an extension from the vehicle’s previous 4-8 week estimated wait time. A detailed chart shared by Tesla data tracker @Tslachan on X shows the progressions of the Model Y L’s estimated delivery dates since its launch earlier this year. 

Following its launch in September, the vehicle was given an initial October 2025 estimated delivery date. The wait times for the vehicle were continually updated over the years, until the middle of November, when the Model Y L had an estimated delivery date of 4-8 weeks. This remained until now, when Tesla China simply listed February 2026 as the estimated delivery date for new Model Y L orders.

Model Y demand in China

Tesla Model Y demand in China seems to be very healthy, even beyond the Model Y L. New delivery dates show the company has already sold out its allocation of the all-electric crossover for 2025. The Model Y has been the most popular vehicle in the world in both of the last two years, outpacing incredibly popular vehicles like the Toyota RAV4. In China, the EV market is substantially more saturated, with more competitors than in any other market.

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Tesla has been particularly kind to the Chinese market, as it has launched trim levels for the Model Y in the country that are not available anywhere else, such as the Model Y L. Demand has been strong for the Model Y in China, with the vehicle ranking among the country’s top 5 New Energy Vehicles. Interestingly enough, vehicles that beat the Model Y in volume like the BYD Seagull are notably more affordable. Compared to vehicles that are comparably priced, the Model Y remains a strong seller in China. 

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