Research

Using molecular evidence buried in rocks, researchers at MIT suggest that some of the Earth’s first living creatures are ancestors of the modern sea sponge, reports Ashley Fike for Vice. “The discovery suggests the earliest animals were simple, filter-feeding organisms that slowly cleaned the seas while the rest of the evolution was still figuring itself out,” says Fike. “These early sponges likely had no skeletons, nerves, or eyes – just porous bodies that absorbed water and nutrients. Yet they paved the way for everything that came next, from insects to mammals to us.” 

Researchers at MIT have developed electron-conducting carbon concrete, a new kind of cement “that can store and release electricity like batteries,” reports Matthew Burgos for Design Boom. “MIT’s concrete battery shows a future where the material can be embedded into roads or parking areas to charge electric vehicles directly, or for off-grid homes that do not need external power,” Burgos explains.

Researchers at MIT have studied how chatbots perceived the political environment leading up to the 2024 election and its impact on automatically generated election-related responses, reports Patrick Kulp for Tech Brew. The researchers “fed a dozen leading LLMs 12,000 election-related questions on a nearly daily basis, collecting more than 16 million total responses through the contest in November,” explains Kulp.  

Writing for the Financial Times, Principal Research Scientist Florian Berg explores “reasons to be hopeful about the resilience of efforts to tackle environmental issues at the corporate level.” Berg explains: “When looking at reporting on carbon emissions, ESG data and money invested in sustainable investment strategies, we can see big increases in recent years.” 

George Smoot '66, PhD '70, the 2006 recipient of the Nobel Prize in Physics, has died at the age of 80, reports Kasha Patel for The Washington Post. Smoot’s work “helped take an image of the universe in its infancy, providing strong support for the Big Bang theory and new insight into the origins of the cosmos,” writes Patel. 

MIT researchers have developed a new model that illustrates the chemical mechanisms underlying lithium-ion batteries, reports Gayoung Lee for Gizmodo. The findings could “lead to faster, more efficient batteries for electric vehicles, portable electronics, and more.”

Prof. Jonathan Gruber speaks with Newsweek reporter Jasmine Laws about the rise of health insurance premiums in the United States. “States with very active management and lots of competition on the exchanges will see the lowest increases,” says Gruber. 

Prof. Canan Dagdeviren speaks with Bloomberg Businessweek Daily reporters Carol Massar and Tim Stenovec about her work developing conformable ultrasound technology aimed at enabling earlier breast cancer detection. “This technology can be a part of your personal bra, and you can wear it and while drinking your coffee within seconds, it can tell you [about] any anomaly with pinpoint accuracy,” Dagdeviren explains. 

Researchers at MIT’s Lincoln Laboratory are developing “automated electric vessels to map the ocean floor and improve search and rescue missions,” reports Ramen Cromwell for Chronicle. "Ship-based echo sounders cover wide areas but with poor resolution, while undersea vehicles have resolution but search too slowly," says Andrew March, an assistant group leader in MIT Lincoln Laboratory’s Advanced Undersea Systems and Technology Group. "It's called a moonshot. We know less about Earth’s seabed than the moon's surface."

Prof. Steve Leeb and graduate student Daniel Monagle speak with Tech Briefs reporter Edward Brown about their work “designing an energy management interface between an energy harvesting source and a sensor load that will give the best possible results.” Monagle notes that in the future they hope to make the system “smaller so that it can fit in tight places like inside a motor terminal box. But beyond that we want to take advantage of AI tools to design techniques for minimizing the energy used by the system.” 

Prof. Daron Acemoglu speaks with Financial Times reporters Claire Jones and Melissa Heikkilä about the economic implications of the AI boom. “There is a lot of pressure on managers to do something with AI… and there is the hype that is contributing to it,” says Acemoglu. “But not many people are doing anything super creative with it yet.” 

A new study by MIT researchers suggests sea sponges may have been the “first animals to inhabit the Earth,” reports Maria Azzura Volpe for Newsweek. “In their work, the researchers linked so-called ‘chemical fossils’ found in ancient rocks to the ancestors of a class of modern-day sea sponges known as demosponges,” explains Volpe. “These chemical fossils—the molecular remnants of once-living organisms that have been buried, transformed, and preserved in sediment over time—were discovered in rocks that date back to more than 541 million years ago, during the Ediacaran Period.” 

MIT researchers have uncovered new evidence that suggests some of Earth’s first living creatures are ancestors of the modern sea sponge, reports Andrew Paul for Popular Science. The researchers identified 541 million-year-old chemical fossils embedded in sediment that they believe may indicate that some of Earth’s earliest creatures were the ancient relatives of today’s sea sponges. 

George Smoot '66, PhD '70, a recipient of the 2006 Nobel Prize in Physics for his work “finding the background radiation that finally pinned down the Big Bang Theory,” has died at age 80, reports the Associated Press. 

In an effort to better understand how protein language models (PLMs) think and better judge their reliability, MIT researchers applied a tool called sparse autoencoders, which can be used to make large language models more interpretable. The findings “may help scientists better understand how PLMs come to certain conclusions and increase researchers’ trust in them," writes Andrea Luis for The Scientist.