Transistors, the building blocks of modern electronics, are typically made of silicon. Because it’s a semiconductor, this material can control the flow of electricity in a circuit. But silicon has fundamental physical limits that restrict how compact and energy-efficient a transistor can be.

MIT researchers have now replaced silicon with a magnetic semiconductor, creating a magnetic transistor that could enable smaller, faster, and more energy-efficient circuits. The material’s magnetism strongly influences its electronic behavior, leading to more efficient control of the flow of electricity. 

The team used a novel magnetic material and an optimization process that reduces the material’s defects, which boosts the transistor’s performance.

The material’s unique magnetic properties also allow for transistors with built-in memory, which would simplify circuit design and unlock new applications for high-performance electronics.

“People have known about magnets for thousands of years, but there are very limited ways to incorporate magnetism into electronics. We have shown a new way to efficiently utilize magnetism that opens up a lot of possibilities for future applications and research,” says Chung-Tao Chou, an MIT graduate student in the departments of Electrical Engineering and Computer Science (EECS) and Physics, and co-lead author of a paper on this advance.

Chou is joined on the paper by co-lead author Eugene Park, a graduate student in the Department of Materials Science and Engineering (DMSE); Julian Klein, a DMSE research scientist; Josep Ingla-Aynes, a postdoc in the MIT Plasma Science and Fusion Center; Jagadeesh S. Moodera, a senior research scientist in the Department of Physics; and senior authors Frances Ross, TDK Professor in DMSE; and Luqiao Liu, an associate professor in EECS, and a member of the Research Laboratory of Electronics; as well as others at the University of Chemistry and Technology in Prague. The paper appears today in Physical Review Letters.

Overcoming the limits

In an electronic device, silicon semiconductor transistors act like tiny light switches that turn a circuit on and off, or amplify weak signals in a communication system. They do this using a small input voltage.

But a fundamental physical limit of silicon semiconductors prevents a transistor from operating below a certain voltage, which hinders its energy efficiency.

To make more efficient electronics, researchers have spent decades working toward magnetic transistors that utilize electron spin to control the flow of electricity. Electron spin is a fundamental property that enables electrons to behave like tiny magnets.

So far, scientists have mostly been limited to using certain magnetic materials. These lack the favorable electronic properties of semiconductors, constraining device performance.

“In this work, we combine magnetism and semiconductor physics to realize useful spintronic devices,” Liu says.

The researchers replace the silicon in the surface layer of a transistor with chromium sulfur bromide, a two-dimensional material that acts as a magnetic semiconductor.

Due to the material’s structure, researchers can switch between two magnetic states very cleanly. This makes it ideal for use in a transistor that smoothly switches between “on” and “off.”

“One of the biggest challenges we faced was finding the right material. We tried many other materials that didn’t work,” Chou says.

They discovered that changing these magnetic states modifies the material’s electronic properties, enabling low-energy operation. And unlike many other 2D materials, chromium sulfur bromide remains stable in air.

To make a transistor, the researchers pattern electrodes onto a silicon substrate, then carefully align and transfer the 2D material on top. They use tape to pick up a tiny piece of material, only a few tens of nanometers thick, and place it onto the substrate.

“A lot of researchers will use solvents or glue to do the transfer, but transistors require a very clean surface. We eliminate all those risks by simplifying this step,” Chou says.

Leveraging magnetism

This lack of contamination enables their device to outperform existing magnetic transistors. Most others can only create a weak magnetic effect, changing the flow of current by a few percent or less. Their new transistor can switch or amplify the electric current by a factor of 10.

They use an external magnetic field to change the magnetic state of the material, switching the transistor using significantly less energy than would usually be required.

The material also allows them to control the magnetic states with electric current. This is important because engineers cannot apply magnetic fields to individual transistors in an electronic device. They need to control each one electrically.

The material’s magnetic properties could also enable transistors with built-in memory, simplifying the design of logic or memory circuits.

A typical memory device has a magnetic cell to store information and a transistor to read it out. Their method can combine both into one magnetic transistor.

“Now, not only are transistors turning on and off, they are also remembering information. And because we can switch the transistor with greater magnitude, the signal is much stronger so we can read out the information faster, and in a much more reliable way,” Liu says.

Building on this demonstration, the researchers plan to further study the use of electrical current to control the device. They are also working to make their method scalable so they can fabricate arrays of transistors.

This research was supported, in part, by the Semiconductor Research Corporation, the U.S. Defense Advanced Research Projects Agency (DARPA), the U.S. National Science Foundation (NSF), the U.S. Department of Energy, the U.S. Army Research Office, and the Czech Ministry of Education, Youth, and Sports. The work was partially carried out at the MIT.nano facilities.

It’s not every day that aspiring teenage engineers can see firsthand how planes are built. But a collaboration between nonprofit Engineering Tomorrow, aerospace firm Boeing, and alumni of the MIT Leaders for Global Operations (LGO) program working at Boeing is aiming to turn curiosity about aerospace engineering into possible careers for young students.

Boeing is LGO’s longest-standing industry collaborator, hosting LGO internships, recruiting LGO alumni, and hosting plant treks for future engineers. Engineering Tomorrow, a nonprofit dedicated to inspiring the next generation of engineers, frames the U.S. engineering workforce shortage as an economic and national security issue — and says the shortage isn’t in just engineers with degrees, but also in trained operators and technicians. They also recognize that many kids often start as natural tinkerers, but get scared off by higher-level math.

To bring more kids into the engineering fold, the organization delivers no-cost engineering labs to middle and high school students by collaborating with influential mentors, such as LGO graduates at organizations like Boeing.

“We want to inspire students by exposing them to professional engineers to illustrate the pathways for them to be problem-solvers in society,” explains Alex Dickson, Engineering Tomorrow’s program coordinator. “The demand for engineers has just gone up dramatically. It’s about being competitive on a global scale. We try to illustrate to students that there are many pathways into these careers.”

How MIT LGO makes engineering dreams a reality

Engineering Tomorrow’s collaboration with MIT LGO grew organically, through a robust alumni network. One of the nonprofit’s board members, LGO alumna Kristine Budill SM ’93, recognized a shared interest: the sizable Boeing LGO community wanted concrete ways to connect more directly with communities, and Engineering Tomorrow does just that.

Budill connected the organization with fellow LGO alumnus Cameron Hoffman MBA ’24, SM ’24, a Boeing manufacturing strategy manager who helped translate that shared mission into a real-world opportunity: an on-site Boeing experience that made engineering tangible for high school students.

The result: One lucky high school engineering design class from Mercer Island, Washington, recently got to experience Boeing 737s being built in person. In November 2025, 30 ninth graders at Mercer Island High School traveled to Boeing’s Renton, Washington, facility to learn how planes are constructed and understand what it really takes to have a career building them.

From the outset, the goal was to avoid the typical spectator field trip. Instead, Engineering Tomorrow and Hoffman designed a structured, multi-touch experience that prepared students before they ever set foot in the factory.

First, an Engineering Tomorrow liaison introduced key aerospace concepts and an associated lab challenge to the class via Zoom, then returned in person to guide Mercer students through a hands-on airplane-design lab, helping them translate theory into practice and answer questions about engineering pathways. Students then visited Boeing’s production facility, where they spoke with engineers from multiple disciplines — not just aerospace — and toured the factory floor.

By the time they arrived, students weren’t just impressed by the scale of the operation; they understood what they were seeing, asked informed questions, and left with a sharp sense of the many routes into engineering and manufacturing careers, Dickson says.

“Cameron set up an incredible on-site experience for the students that really made real-world engineering a more tangible experience for them,” Dickson says. “Many people think Boeing is just about aerospace engineering, because Boeing is an aerospace company. But they got to hear from mechanical engineers, electrical engineers, and workers with all sorts of backgrounds who made it clear that there’s no one set pathway into engineering or manufacturing.”

Then came the best part: Students got a VIP tour of the production facility, led by Boeing staff.

A snack and a tour

“It’s awe-inspiring: Dozens of unfinished airplanes are under one site, and you see all of the real-world production engineering that goes into something that oftentimes we take for granted when we step onto an airplane,” Dickson says.

When the big day arrived, students also met with engineering teams to learn about the history of the plant, complete with fun facts geared to high schoolers. (Did you know that a 737 takes off or lands every two seconds?) They learned about different career pathways, from design to production. It was easy to envision themselves working there, Hoffman says.

“Boeing is a company that a lot of folks work at for their entire career and take a lot of pride in the work that they do. We showed them: What does that look like? Do you want to be an engineer for your entire career? Do you want to be a people leader in the facility? Do you want to be a technical expert?” Hoffman says. “And the kids asked great questions.”

Then, the students — after snacks, of course — toured the production floor, where engineers assembled planes and tested parts. For Hoffman, that experience was deeply personal: He wished he’d experienced something similar growing up.

A 10-year Boeing veteran, Hoffman led the group throughout. He started at Boeing in 2015 as a recent college graduate, where he encountered several LGO alums who recommended the program.

“I’d been deeply interested in manufacturing since my early undergrad days. Boeing was an amazing place to work because our products are so complex, and the production systems are so fascinating,” he recalls.

Over time, he wanted to transition into people leadership with an MBA degree. His Boeing colleagues, well-represented among the LGO ranks, urged him toward the MIT program.

“LGO’s network is what makes it so special,” he says.

Upon returning to Boeing after completing his LGO degrees, Hoffman joined Boeing’s LGO/Tauber Leadership Development Program, which allows him to stay regularly engaged with the MIT LGO Program. One such activity where he remains engaged with the program is through the MIT LGO Alumni Board. As part of the board, Hoffman focuses on the social good committee, and the Engineering Tomorrow high school partnership was a perfect fit to meet that committee’s goals.

For Hoffman, these leadership initiatives are what makes LGO distinctive.

“When you graduate from a program like LGO, you’re often so forward-looking. It helps to take time to reflect on what an inspiration you can be to the people who come after you. MIT LGO focuses on both engineering and business. Our students want to study engineering because they want to be problem-solvers. The LGO program, which is at the intersection of engineering and business leadership, is just an incredible inspirational program for young students to see,” Hoffman says.

It was an opportunity he didn’t get as an ambitious young high schooler.

“As a kid, the only engineering class that was available to me was architectural drafting. If this opportunity was offered to me when I was in high school, I would’ve jumped out of my shoes at the chance. You get to see products that are just so complex; you really can't believe it until you see it,” he says.

Setting a positive precedent across industries

Mercer Island engineering design teacher Michael Ketchum had high praise for the field trip, considering it transformative for his students. He estimates that roughly 80 percent of them want to be engineers. He was impressed that the experience was more than just a tour, that it also included classroom support and airplane design kits, reinforcing core engineering concepts. The collaboration allowed them to broaden a previously CAD-focused class into one that also includes 3D printing, electronics, and aerospace applications. 

“For freshmen and sophomores, field trips are key. They stick in their head a bit longer than just school learning. If they get to see people getting excited talking about engineering, and it embeds it a little bit better in their brain,” Ketchum says.

In a post-trip survey, students reported being more likely to consider engineering after the experience.

“They expressed the idea that the conversations with engineers inspired them, and 100 percent of students said that seeing a production facility was one of the coolest parts of the program, which led to them being more inclined to want to be an engineer,” Engineering Tomorrow’s Dickson says.

Next year, the LGO network hopes to expand to partner with additional companies, from health care to biotech.

“The goal is to continue to create exposure. This visit was a really great proof of concept to see what’s valuable to students,” Hoffman says — and, ideally, future LGO alumni.

Iran is slowly emerging from the most severe communications blackout in its history and one of the longest in the world. Triggered as part of January’s government crackdown against citizen protests nationwide, the regime implemented an internet shutdown that transcends the standard definition of internet censorship. This was not merely blocking social media or foreign websites; it was a total communications shutdown.

Unlike previous Iranian internet shutdowns where Iran’s domestic intranet—the National Information Network (NIN)—remained functional to keep the banking and administrative sectors running, the 2026 blackout ...

This is new. North Korean hackers are posing as company recruiters, enticing job candidates to participate in coding challenges. When they run the code they are supposed to work on, it installs malware on their system.

News article.

The agency’s effort to maintain methane rules could create legal woes as it argues greenhouse gas curbs lack clear congressional backing.

Mass Save would see a billion-dollar cut under legislation advanced Thursday. Critics called it counterproductive.

Pollution credits sold for the bare minimum at a recent auction. Activists say California must raise prices to encourage emissions cuts.

Improved disaster modeling and finances have left property insurers better able to pay claims from Winter Storms Fern and Hernando, analyst says.

The top budget official confirmed that Gov. Kathy Hochul wants to change the state’s climate law.

A hotter Atlantic Ocean contributed to unusually powerful downpours, scientists said.

Officials said 15 people are still missing and over 230 have been rescued. More than 5,500 people have been forced to leave their homes.

“At the end of this process, we still believe models tend to underestimate physical risk,” said Norges Bank Investment Management.

In a big win for protesters’ rights, the U.S. Court of Appeals for the Tenth Circuit overturned a lower court’s dismissal of a challenge to sweeping warrants to search a protester’s devices and digital data and a nonprofit’s social media data.

The case, Armendariz v. City of Colorado Springs, arose after a housing protest in 2021, during which Colorado Springs police arrested protesters for obstructing a roadway. After the demonstration, police also obtained warrants to seize and search through the devices and data of Jacqueline Armendariz Unzueta, who they claimed threw a bike at them during the protest. The warrants included a search through all of her photos, videos, emails, text messages, and location data over a two-month period, as well as a time-unlimited search for 26 keywords, including words as broad as “bike,” “assault,” “celebration,” and “right,” that allowed police to comb through years of Armendariz’s private and sensitive data—all supposedly to look for evidence related to the alleged simple assault. Police further obtained a warrant to search the Facebook page of the Chinook Center, the organization that spearheaded the protest, despite the Chinook Center never having been accused of a crime.

The district court dismissed the civil rights lawsuit brought by Armendariz and the Chinook Center, holding that the searches were justified and that, in any case, the officers were entitled to qualified immunity. The plaintiffs, represented by the ACLU of Colorado, appealed. EFF—joined by the Center for Democracy and Technology, the Electronic Privacy Information Center, and the Knight First Amendment Institute at Columbia University—wrote an amicus brief in support of that appeal.

In a 2-1 opinion, the Tenth Circuit reversed the district court’s dismissal of the lawsuit’s Fourth Amendment search and seizure claims. The court painstakingly picked apart each of the three warrants and found them to be overbroad and lacking in particularity as to the scope and duration of the searches. The court further held that in furnishing such facially deficient warrants, the officers violated “clearly established” law and thus were not entitled to qualified immunity. Although the court did not explicitly address the First Amendment concerns raised by the lawsuit, it did note the backdrop against how these searches were carried out, including animus by Colorado Springs police leading up to the housing protest.

It is rare for appellate courts to call into question any search warrants. It’s even rarer for them to deny qualified immunity defenses. The Tenth Circuit’s decision should be celebrated as a big win for protesters and anyone concerned about police immunity for violating people’s constitutional rights. The case is now remanded back to the district court to proceed—and hopefully further vindicate the privacy rights we all have in our devices and digital data.

In a narrow strip of land along the Andes mountain range in central Chile, an Indigenous community has long celebrated the bark of a rare tree for its medicinal properties. Modern science only recently caught up to the tradition, finding the so-called soapbark tree contains potent compounds for boosting the human immune system.

The molecules have since been harnessed to make the world’s first malaria vaccine and to boost the effectiveness of vaccines for everything from shingles to Covid-19 and cancer. Unfortunately, unsustainable harvesting has threatened the existence of the tree species, leading the Chilean government to severely restrict lumbering.

The soapbark tree’s story is not unique. Plants are the foundation of industries such as pharmaceuticals, beauty, agriculture, and forestry, yet around 45 percent of plant species are in danger of going extinct. At the same time, human demand for plant products continues to rise. Ashley Beckwith SM ’18, PhD ’22 believes meeting that demand requires rethinking how plants are grown. Her company, Foray Bioscience, aims to make plant production faster, more adaptable, and less damaging to fragile natural supply chains.

The company is working to make it possible to grow any plant or plant product from single cells using biomanufacturing powered by artificial intelligence. Foray has already developed molecules, materials, and fabricated seeds with various partners, including academic researchers, nurseries, conservationists, and companies.

In one new partnership, Foray is working with the nursery West Coast Chestnut to deploy a more disease-resistant version of the chestnut trees that once filled forests across the eastern U.S. but have since been wiped out. The project is just one example of how AI and plant science can be leveraged to protect the plant populations that bring so much value to humans and the planet.

“Plant systems underpin every aspect of our daily lives, from the air we breathe to the food we eat, the clothes we wear, the homes we live in, and more,” Beckwith says. “But these plant systems are fragile and in decline. We need new strategies to ensure lasting access to the plant products and ecosystems we depend on.”

From human cells to plants

Beckwith focused on biology and materials manufacturing as a master’s student in MIT’s Department of Mechanical Engineering. Her research involved building platforms to enable precision treatments for human diseases. After graduating, she worked on a regenerative, self-sufficient farm that mimicked natural ecosystems, and began thinking about applying her work to address the fragility of plant systems.

Beckwith returned to MIT for her PhD to explore the idea of regenerative plant systems, studying in the lab of Research Scientist Luis Fernando Velásquez-García in the Department of Electrical Engineering and Computer Science.

“To address organ shortages for transplants, scientists aspire to grow kidneys that don’t have to be harvested from a human using tissue engineering,” Beckwith says. “What if we could do something similar for our plant systems?”

Beckwith went on to publish papers showing she could grow wood-like plant material in a lab. By adjusting certain chemicals, the researchers could precisely control properties like stiffness and density.

“I was thinking about how we build products, like wood, from the cell up instead of extracting from the top down,” Beckwith recalls. “It led to some foundational demonstrations that underpin the work we do at Foray today, but it also opened up questions: Where are these new approaches most urgently needed? What would it take to apply these tools where they’re needed, fast?”

Beckwith began exploring the idea of starting a company in 2021, participating in accelerator programs run by the E14 Fund and The Engine — both MIT-affiliated initiatives designed to support breakthrough science ventures. She officially founded Foray in February of 2022 after completing her PhD.

“Our early research showed that we could grow wood-like material directly from plant cells,” she says. “We are now able to grow not just wood without the tree, but also produce harvest-free molecules, materials, and even seeds by steering single cells to develop precisely into the products we need without ever having to grow the whole plant.”

Beckwith describes her lab-grown wood innovation as analogous to Uber if there were no internet — a powerful idea without the digital backbone to scale. To create the data foundation and ecosystem to scale plant innovation, Foray is now building the Pando AI platform to enable rapid discovery and deployment of these novel plant solutions.

“Pando functions like a Google Maps for plant growth,” Beckwith says. “It helps scientists navigate a really complex field of variables and arrive at a research destination efficiently — because to steer a cell to produce a particular product, there might be 50 different variables to tweak. It would take a lifetime to explore each of those, and that’s one reason why plant research is so slow today.”

The “operating system for plant science”

Foray’s team includes experts in plant biology, artificial intelligence, machine learning, computational biology, and process engineering.

“This is a very intersectional problem,” Beckwith says. “One of the most exciting things for me is building this highly capable team that is able to deliver solutions that could never be created in a silo.”

After a year of pilot collaborations with select researchers, Foray is preparing for a broader public launch of its Pando platform early this year.

Over the next several years, Beckwith hopes Foray will serve as an innovation engine for researchers and companies working across agriculture, materials, pharmaceuticals, and conservation. Foray already uses Pando internally to create plant solutions that overcome limitations in natural production.       

“Fabricated seeds are one capability that we’re really excited about,” Beckwith says. “Being able to grow seeds from cells lets you create really timely and scalable seed supplies to address gaps in restoration, or shorten the path to market for new, resilient crop varieties. There’s a lot to be gained by making our plant systems more adaptive.”

“We want to shorten plant development timelines, so solutions can be built in months, not decades,” Beckwith says. “We’re excited to be building tools that represent a step change in the way plant production can be done.”

As Foray’s products scale and more researchers use its platform, the company is hoping to help the plant science industry respond to some of our planet’s most pressing challenges.

“Right now, we’re focused on plants in labs,” Beckwith says. “In five years, we aim to be the operating system for all of plant science, making it possible to build anything from a single plant cell.”

Nature Climate Change, Published online: 27 February 2026; doi:10.1038/s41558-026-02577-1

Regulation of property insurance pricing involves trade-offs that will determine how disaster risks impact households’ budgets. Allowing prices to reflect property-specific risks offers several benefits, but may cause a range of negative unintended consequences associated with declines in coverage.

Nature Climate Change, Published online: 27 February 2026; doi:10.1038/s41558-026-02568-2

Melting beneath floating Antarctic ice shelves is a major driver of ice-shelf mass loss and is projected to increase over the coming century. High-resolution maps of Antarctic basal-melt rates reveal stronger melt within narrow basal channels than previously recognized, making some ice shelves more vulnerable to additional melt channelization.

Nature Climate Change, Published online: 27 February 2026; doi:10.1038/s41558-026-02563-7

A temporary breach of the temperature target, or overshoot, is unavoidable. The authors review the history of how overshoot evolved in mitigation pathways, the magnitude and outcomes of potential physical and socio-economic impacts, and priorities for future model and scenario development.

LLMs are bad at generating passwords:

There are strong noticeable patterns among these 50 passwords that can be seen easily:

• All of the passwords start with a letter, usually uppercase G, almost always followed by the digit 7.
• Character choices are highly uneven ­ for example, L , 9, m, 2, $ and # appeared in all 50 passwords, but 5 and @ only appeared in one password each, and most of the letters in the alphabet never appeared at all.
• There are no repeating characters within any password. Probabilistically, this would be very unlikely if the passwords were truly random ­ but Claude preferred to avoid repeating characters, possibly because it “looks like it’s less random”. ...

American officials are drafting a diplomatic cable that warns dozens of countries against adopting a climate fee on the shipping industry.

An industry group told federal officials that losing the National Center for Atmospheric Research would weaken insurance “stability and affordability.”