News
NASA’s Curiosity Rover takes valiant selfie as it weathers Mars’ huge storm
NASA’s Curiosity Rover recently took a selfie at it continues to weather a massive dust storm that has enveloped a massive area of the Red Planet. The spunky rover’s latest self-portrait was taken on Sol 2028, almost six years into its mission.
Immediately noticeable in the image was the thickness of the dust surrounding Curiosity, officially known as the Mars Science Laboratory (MSL). As could be seen in the rover’s self-portrait, which was shared by Seán Doran, the whole background is covered by a thick haze, completely blocking out mountains in the distance. Despite being covered by Martian dust due to the storm, however, Curiosity remains fully operational, thanks to its Radioisotope Thermoelectric Generator (RTG), which converts heat from plutonium into electricity, enabling it to work despite being devoid of sunlight.
NASAs Mars Curiosity Rover takes a selfie in the middle of a massive storm. [Credit: Seán Doran/Flickr]
Curiosity’s RTG is designed with a plutonium core that generates electricity with its heat. Curiosity’s RTG is capable of producing 120 watts, and based on rough estimates; it would take around 14 years of constant operation before the plutonium decays to such a point that it only produces 100 watts. Even then, Curiosity would still be able to function, making it likely that the power source will outlast the rover’s other components, such as its wheels.
The absence of sunlight has been a particular point of concern for another one of NASA’s Martian rovers — Opportunity — which was caught in the middle of the dust storm. Being solar-powered, Opportunity relies on solar panels to recharge its batteries. Due to the storm blocking out the sun, however, the 14-year veteran has lost contact with Earth, and in a recent press conference, NASA noted that the rover has probably entered low power fault mode, which shuts down all of its systems except its mission clock.
Curiosity, for its part, was fortunate enough to escape the center of the storm. Back on June 12, Curiosity took a photo suggesting that the massive dust storm was beginning to encroach in its area of operations, according to a Space.com report. During NASA’s recent press conference for Opportunity, the space agency noted that the storm had already covered 15.8 million square miles (41 million square kilometers), which equates to the size of North America and Russia combined.
Curiosity is currently operating in Mars’ Gale Crater; a 96-mile-wide (154 kilometers) area believed to have once been a vast Martian lake. Curiosity was deployed in the crater to study its geology, which contains both clays and sulfate minerals, which form in water under varying conditions and suggest that the Red Planet may have harbored conditions favorable for life in its distant past.
Curiosity was delivered to Mars beneath a hovering rocket-powered crane in August 2012 and began exploring Gale Crater soon after. While the rover began its mission studying the crater’s floor, Curiosity’s ultimate goal is is currently in the process of climbing Aeolis Mons (nicknamed Mount Sharp), a massive mountain rising 5.5 kilometers (18.000 ft) out of the crater’s center. Just like the walls of an Earthly canyon, Mount Sharp flank hosts layers of data-rich sediment that allow the rover’s science team to understand Mars more deeply than ever before.
News
Tesla confirms that it finally solved its 4680 battery’s dry cathode process
The suggests the company has finally resolved one of the most challenging aspects of its next-generation battery cells.
Tesla has confirmed that it is now producing both the anode and cathode of its 4680 battery cells using a dry-electrode process, marking a key breakthrough in a technology the company has been working to industrialize for years.
The update, disclosed in Tesla’s Q4 and FY 2025 update letter, suggests the company has finally resolved one of the most challenging aspects of its next-generation battery cells.
Dry cathode 4680 cells
In its Q4 and FY 2025 update letter, Tesla stated that it is now producing 4680 cells whose anode and cathode were produced during the dry electrode process. The confirmation addresses long-standing questions around whether Tesla could bring its dry cathode process into sustained production.
The disclosure was highlighted on X by Bonne Eggleston, Tesla’s Vice President of 4680 batteries, who wrote that “both electrodes use our dry process.”
Tesla first introduced the dry-electrode concept during its Battery Day presentation in 2020, pitching it as a way to simplify production, reduce factory footprint, lower costs, and improve energy density. While Tesla has been producing 4680 cells for some time, the company had previously relied on more conventional approaches for parts of the process, leading to questions about whether a full dry-electrode process could even be achieved.
4680 packs for Model Y
Tesla also revealed in its Q4 and FY 2025 Update Letter that it has begun producing battery packs for certain Model Y vehicles using its in-house 4680 cells. As per Tesla:
“We have begun to produce battery packs for certain Model Ys with our 4680 cells, unlocking an additional vector of supply to help navigate increasingly complex supply chain challenges caused by trade barriers and tariff risks.”
The timing is notable. With Tesla preparing to wind down Model S and Model X production, the Model Y and Model 3 are expected to account for an even larger share of the company’s vehicle output. Ensuring that the Model Y can be equipped with domestically produced 4680 battery packs gives Tesla greater flexibility to maintain production volumes in the United States, even as global battery supply chains face increasing complexity.
Elon Musk
Tesla Giga Texas to feature massive Optimus V4 production line
This suggests that while the first Optimus line will be set up in the Fremont Factory, the real ramp of Optimus’ production will happen in Giga Texas.
Tesla will build Optimus 4 in Giga Texas, and its production line will be massive. This was, at least, as per recent comments by CEO Elon Musk on social media platform X.
Optimus 4 production
In response to a post on X which expressed surprise that Optimus will be produced in California, Musk stated that “Optimus 4 will be built in Texas at much higher volume.” This suggests that while the first Optimus line will be set up in the Fremont Factory, and while the line itself will be capable of producing 1 million humanoid robots per year, the real ramp of Optimus’ production will happen in Giga Texas.
This was not the first time that Elon Musk shared his plans for Optimus’ production at Gigafactory Texas. During the 2025 Annual Shareholder Meeting, he stated that Giga Texas’ Optimus line will produce 10 million units of the humanoid robot per year. He did not, however, state at the time that Giga Texas would produce Optimus V4.
“So we’re going to launch on the fastest production ramp of any product of any large complex manufactured product ever, starting with building a one-million-unit production line in Fremont. And that’s Line one. And then a ten million unit per year production line here,” Musk stated.
How big Optimus could become
During Tesla’s Q4 and FY 2025 earnings call, Musk offered additional context on the potential of Optimus. While he stated that the ramp of Optimus’ production will be deliberate at first, the humanoid robot itself will have the potential to change the world.
“Optimus really will be a general-purpose robot that can learn by observing human behavior. You can demonstrate a task or verbally describe a task or show it a task. Even show it a video, it will be able to do that task. It’s going to be a very capable robot. I think long-term Optimus will have a very significant impact on the US GDP.
“It will actually move the needle on US GDP significantly. In conclusion, there are still many who doubt our ambitions for creating amazing abundance. We are confident it can be done, and we are making the right moves technologically to ensure that it does. Tesla, Inc. has never been a company to shy away from solving the hardest problems,” Musk stated.
Elon Musk
Rumored SpaceX-xAI merger gets apparent confirmation from Elon Musk
The comment follows reports that the rocket maker is weighing a transaction that could further consolidate Musk’s space and AI ventures.
Elon Musk appeared to confirm reports that SpaceX is exploring a potential merger with artificial intelligence startup xAI by responding positively to a post about the reported transaction on X.
Musk’s comment follows reports that the rocket maker is weighing a transaction that could further consolidate his space and AI ventures.
SpaceX xAI merger
As per a recent Reuters report, SpaceX has held discussions about merging with xAI, with the proposed structure potentially involving an exchange of xAI shares for SpaceX stock. The value, structure, and timing of any deal have not been finalized, and no agreement has been signed.
Musk appeared to acknowledge the report in a brief reply on X, responding “Yeah” to a post that described SpaceX as a future “Dyson Swarm company.” The comment references a Dyson Swarm, a sci-fi megastructure concept that consists of a massive network of satellites or structures that orbit a celestial body to harness its energy.
Reuters noted that two entities were formed in Nevada on January 21 to facilitate a potential transaction for the possible SpaceX-xAI merger. The discussions remain ongoing, and a transaction is not yet guaranteed, however.
AI and space infrastructure
A potential merger with xAI would align with Musk’s stated strategy of integrating artificial intelligence development with space-based systems. Musk has previously said that space-based infrastructure could support large-scale computing by leveraging continuous solar energy, an approach he has framed as economically scalable over time.
xAI already has operational ties to Musk’s other companies. The startup develops Grok, a large language model that holds a U.S. Department of Defense contract valued at up to $200 million. AI also plays a central role in SpaceX’s Starlink and Starshield satellite programs, which rely on automation and machine learning for network management and national security applications.
Musk has previously consolidated his businesses through share-based transactions, including Tesla’s acquisition of SolarCity in 2016 and xAI’s acquisition of X last year. Bloomberg has also claimed that Musk is considering a merger between SpaceX and Tesla in the future.
Tesla confirms that it finally solved its 4680 battery’s dry cathode process
Tesla Giga Texas to feature massive Optimus V4 production line
