Research

MIT astronomers have witnessed flashes of X-rays shooting out of a black hole and believe that a dead star, or white dwarf, passing close by the black hole could be causing the eruptions, reports Mark Kaufman for Mashable. “The astronomers ran simulations of what could drive these unusual bursts of energy,” writes Kaufman. “The most plausible outcome is this brazen white dwarf (the spent core of a sun-like star), which is about one-tenth the mass of our sun. It's shedding its dense, outer layer and triggering these pulses of X-rays.” 

Space.com reporter Robert Lea writes that using the XMM-Newton X-ray telescope, MIT astronomers have observed bursts of X-rays erupting with increasing frequency from a supermassive black hole, a behavior they think could be caused by a “dead stellar core, or white dwarf, daringly teetering on the edge of the black hole.” Lea explains that “if the source of these strange episodes is a finely balanced white dwarf, the researchers theorize that it could be detected using ripples in space and time called gravitational waves emitted from the system.”

Quanta Magazine reporter Charlie Wood spotlights how MIT researchers have contributed to the recent discoveries of new superconductive materials. Prof. Long Ju and his research team “placed a five-layer graphene flake on an insulator at a twisted angle and observed a rare electron behavior that normally requires a strong magnetic field to induce,” explains Wood. 

Ars Technica reporter Jacek Krywko spotlights how MIT researchers have developed a new photonic chip that that can “compute the entire deep neural net, including both linear and non-linear operations, using photons.” Visiting scientist Saumil Bandyopadhyay '17, MEng '18, PhD '23 explains that: “We’re focused on a very specific metric here, which is latency. We aim for applications where what matters the most is how fast you can produce a solution. That’s why we are interested in systems where we’re able to do all the computations optically.” 

Researchers from MIT and elsewhere have suggested that “the impact of news that is factually inaccurate — including fake news, misinformation and disinformation — pales in comparison to the impact of news that are factually accurate but misleading,” reports Sandra Matz for Salon. “According to researchers, for example, the impact of slanted news stories encouraging vaccine skepticism during the COVID-19 pandemic was about 46-fold greater than that of content flagged as fake by fact-checkers,” writes Matz. 

Prof. David Rand speaks with Wired reporter Brian Barrett about the implications of Meta’s new “community notes” system in addressing bias on social media platforms. “The motivator for all of this changing of Meta’s policies and Musk’s takeover of Twitter is this accusation of social media companies being biased against conservatives,” says Rand. “There’s just not good evidence of that.”

Researchers at MIT and elsewhere have found “that investors who use OpenAI’s GPT-4o to summarize earnings calls realize higher returns than those who don’t,” reports Kyle Wiggers for TechCrunch. “The researchers recruited investors and had GPT-4o give them AI summaries aligned with their investing expertise,” explains Wiggers. “Sophisticated investors got more technical AI-generated notes, while novices got simpler ones.” 

New research by graduate student Aidan Toner-Rodgers looks at “what happened to the productivity of over a thousand scientists at an R&D lab of a large company after they got access to AI,” reports Greg Rosalsky for NPR’s Planet Money. “Toner-Rodgers found that ‘while the bottom third of scientists see little benefit, the output of top researchers nearly doubles,’” Rosalsky explains. 

A new tabletop exercise, developed by researchers at MIT and the Center for Strategic and International Studies (CSIS), has found that “a further buildup of U.S. nuclear capabilities would have limited effect on whether China might use its own nuclear weapons should a war over Taiwan erupt,” reports Brad Dress and Ellen Mitchell for The Hill. “The first large-scale war game of such an incident,” they write, “found that a U.S. buildup that goes past current modernization plans would not bolster nuclear deterrence in relation to Taiwan.” 

Writing for Wired, Prof. Daniela Rus, director of CSAIL, highlights the future of “physical intelligence, a new form of intelligent machine that can understand dynamic environments, cope with unpredictability, and make decisions in real time.” Rus writes: “Unlike the models used by standard AI, physical intelligence is rooted in physics; in understanding the fundamental principles of the real world, such as cause-and-effect.”

Sloan research fellow Michael Schrage speaks with Fortune reporter Sheryl Estrada about the impact of AI on CFO roles. “The ongoing ‘Compound AI’ revolution, which involves approaching AI tasks by combining multiple interacting components, will increasingly transform the CFO role into that of an AI-powered chief capital officer (CCO),” says Schrage. “This is an analytics-driven shift that isn’t optional but imperative for enterprise growth.”

A new study co-authored by Prof. Emeritus Frank Levy that finds chatbot-style artificial intelligence could “fuel a reshaping of the population and labor market map of America,” writes Steve Lohr for The New York Times. Levy and his colleagues found that midsize cities in the Midwest, Mid-Atlantic and South are “well positioned to use AI to become more productive, helping to draw more people to those areas.” 

Knowable Magazine reporter Katherine Ellison spotlights Future You, a new program developed by researchers at MIT that “offers young people a chance to chat with an online, AI-generated simulation of themselves at age 60.” 

Researchers at MIT and elsewhere have found “the smallest asteroids ever detected within the main belt, which is a field between Mars and Jupiter where millions of asteroids orbit,” reports Sabrina Lam for The Boston Globe. “With new technology, we can find populations of asteroids that were inaccessible previously,” says Prof. Julien De Wit.  “Now we have the capability to be able to study this object further out, predict the orbit with much better accuracy, and decide what to do for potential or possible future impactors.”

Prof. Daron Acemoglu speaks with Times Higher Ed’s Jack Grove about the importance of maintaining economic and political discussions in higher ed. “It is fine for academics to speak on such issues as long as you can keep that separate from your classrooms and for what constitutes high-quality research,” says Acemoglu. “There are special times when academics should speak out.”