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Suborbital space tourism finally arrives | FCC prepares to run public C-band auction | The big four in the U.S. launch industry — United Launch Alliance, SpaceX, Blue Origin and Northrop Grumman — hope to be one of two providers that will receive five-year contracts later this year to launch national security payloads starting in 2022. | China’s launch rate stays high | The International Space Station is the largest ever crewed object in space.

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Using artificial intelligence to find anomalies hiding...

February 25, 2022

Identifying a malfunction in the nation’s power grid can be like trying to find a needle in an enormous haystack. Hundreds of thousands of interrelated sensors spread across the U.S. capture data on electric current, voltage, and other critical information in real time, often taking multiple recordings per second. Researchers at the MIT-IBM Watson AI Lab have devised a computationally efficient method that can automatically pinpoint anomalies in those data streams in real time. They demonstrated that their artificial...

MIT entrepreneurs think globally, act locally

February 25, 2022

Born and raised amid the natural beauty of the Dominican Republic, Andrés Bisonó León feels a deep motivation to help solve a problem that has been threatening the Caribbean island nation’s tourism industry, its economy, and its people. As Bisonó León discussed with his long-time friend and mentor, the Walter M. May and A. Hazel May Professor of Mechanical Engineering (MechE) Alexander Slocum Sr., ugly mats of toxic sargassum seaweed have been encroaching on the Dominican Republic’s pristine beaches...

Festival of Learning centers on guiding students...

February 24, 2022

The Festival of Learning is an annual event for MIT faculty, students, and staff, co-sponsored by MIT Open Learning and the Office of the Vice Chancellor to examine excellent learning practices and research. After a hiatus in 2021, the Festival of Learning resumed this January with a virtual format to explore how education at MIT has been transformed by world events, digital innovations, and renewed commitment to better serve its diverse student population. In Chancellor Melissa Nobles’ opening remarks,...

Deep-learning technique predicts clinical treatment outcomes

February 24, 2022

When it comes to treatment strategies for critically ill patients, clinicians want to be able to consider all their options and timing of administration, and make the optimal decision for their patients. While clinician experience and study has helped them to be successful in this effort, not all patients are the same, and treatment decisions at this crucial time could mean the difference between patient improvement and quick deterioration. Therefore, it would be helpful for doctors to be able...

Chemical synthesis yields potential antibiotic

February 24, 2022

Chemists at MIT have developed a novel way to synthesize himastatin, a natural compound that has shown potential as an antibiotic. Using their new synthesis, the researchers were able not only to produce himastatin but also to generate variants of the molecule, some of which also showed antimicrobial activity. They also discovered that the compound appears to kill bacteria by disrupting their cell membranes. The researchers now hope to design other molecules that could have even stronger antibiotic activity....

More sensitive X-ray imaging

February 24, 2022

Scintillators are materials that emit light when bombarded with high-energy particles or X-rays. In medical or dental X-ray systems, they convert incoming X-ray radiation into visible light that can then be captured using film or photosensors. They’re also used for night-vision systems and for research, such as in particle detectors or electron microscopes. Researchers at MIT have now shown how one could improve the efficiency of scintillators by at least tenfold, and perhaps even a hundredfold, by changing the...

Robotic cubes shapeshift in outer space

February 23, 2022

If faced with the choice of sending a swarm of full-sized, distinct robots to space, or a large crew of smaller robotic modules, you might want to enlist the latter. Modular robots, like those depicted in films such as “Big Hero 6,” hold a special type of promise for their self-assembling and reconfiguring abilities. But for all of the ambitious desire for fast, reliable deployment in domains extending to space exploration, search and rescue, and shape-shifting, modular robots built...

Alan Grossman to step down as head...

February 23, 2022

Alan D. Grossman, the Praecis Professor of Biology at MIT, has announced he will step down as the head of the Department of Biology before the start of the next academic year. He will continue to lead the department until the new head is selected. A search committee will convene later this spring to recommend candidates for Grossman’s successor. “Alan Grossman is an outstanding biologist who is, and has been, deeply committed to the research and educational missions of...

Richard Binzel: Eyes on the skies and...

February 22, 2022

Richard Binzel has long held a see-for-yourself attitude toward astronomy. It developed in 1970, when he received a Criterion RV6 telescope for his 12th birthday. It was on a cold Ohio night looking through that telescope at the rings of Saturn that he first realized he wanted to be a planetary astronomer. “I thought, ‘Oh my gosh, how fantastic planets are. That’s what I want to study when I grow up,’” says Binzel. It didn’t take him long to...

Singing in the brain

February 22, 2022

For the first time, MIT neuroscientists have identified a population of neurons in the human brain that lights up when we hear singing, but not other types of music. These neurons, found in the auditory cortex, appear to respond to the specific combination of voice and music, but not to either regular speech or instrumental music. Exactly what they are doing is unknown and will require more work to uncover, the researchers say. “The work provides evidence for relatively...

New power sources

February 22, 2022

In the mid-1990s, a few energy activists in Massachusetts had a vision: What if citizens had choice about the energy they consumed? Instead of being force-fed electricity sources selected by a utility company, what if cities, towns, and groups of individuals could purchase power that was cleaner and cheaper? The small group of activists — including a journalist, the head of a small nonprofit, a local county official, and a legislative aide — drafted model legislation along these lines...

Can machine-learning models overcome biased datasets?

February 21, 2022

Artificial intelligence systems may be able to complete tasks quickly, but that doesn’t mean they always do so fairly. If the datasets used to train machine-learning models contain biased data, it is likely the system could exhibit that same bias when it makes decisions in practice. For instance, if a dataset contains mostly images of white men, then a facial-recognition model trained with these data may be less accurate for women or people with different skin tones. A group...

A revolution in learning

February 21, 2022

To understand a country, it helps to know its schools. To grasp Mexico, MIT historian Tanalís Padilla believes, that means learning about its rural “normales,” teacher-training schools with outsized historical influence on the country’s politics. This might seem surprising. At its height, the system of rural normales consisted of only 35 such boarding schools, scattered in the countryside, populated by the children of peasants and indigenous residents. Yet these schools had been founded on the ideals of the Mexican...

Credit card-sized device focuses terahertz energy to...

February 19, 2022

Researchers have created a device that enables them to electronically steer and focus a beam of terahertz electromagnetic energy with extreme precision. This opens the door to high-resolution, real-time imaging devices that are hundredths the size of other radar systems and more robust than other optical systems. Terahertz waves, located on the electromagnetic spectrum between microwaves and infrared light, exist in a “no man’s land” where neither classic electronics nor optical devices can effectively manipulate their energy. But these...

Toward a stronger defense of personal data

February 19, 2022

A heart attack patient, recently discharged from the hospital, is using a smartwatch to help monitor his electrocardiogram signals. The smartwatch may seem secure, but the neural network processing that health information is using private data that could still be stolen by a malicious agent through a side-channel attack. A side-channel attack seeks to gather secret information by indirectly exploiting a system or its hardware. In one type of side-channel attack, a savvy hacker could monitor fluctuations in the...

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