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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.

 
Advanced imaging reveals mired migration of neurons...
Using an innovative microscopy method, scientists at The Picower Institute for Learning and Memory at MIT observed how newborn neurons struggle to reach their proper places in advanced human brain tissue models of Rett syndrome, producing new insight into how developmental deficits observed in the brains of patients with the devastating disorder may emerge. Rett syndrome, which is characterized by symptoms including severe intellectual disability and impaired social behavior, is caused by mutations in the gene MECP2. To gain...

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A better way to quantify radiation damage...
It was just a piece of junk sitting in the back of a lab at the MIT Nuclear Reactor facility, ready to be disposed of. But it became the key to demonstrating a more comprehensive way of detecting atomic-level structural damage in materials — an approach that will aid the development of new materials, and could potentially support the ongoing operation of carbon-emission-free nuclear power plants, which would help alleviate global climate change. A tiny titanium nut that had...

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New algorithm aces university math course questions
Multivariable calculus, differential equations, linear algebra — topics that many MIT students can ace without breaking a sweat — have consistently stumped machine learning models. The best models have only been able to answer elementary or high school-level math questions, and they don’t always find the correct solutions. Now, a multidisciplinary team of researchers from MIT and elsewhere, led by Iddo Drori, a lecturer in the MIT Department of Electrical Engineering and Computer Science (EECS), has used a neural...

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Why it’s a problem that pulse oximeters...
Pulse oximetry is a noninvasive test that measures the oxygen saturation level in a patient’s blood, and it has become an important tool for monitoring many patients, including those with Covid-19. But new research links faulty readings from pulse oximeters with racial disparities in health outcomes, potentially leading to higher rates of death and complications such as organ dysfunction, in patients with darker skin. It is well known that non-white intensive care unit (ICU) patients receive less-accurate readings of...

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Using artificial intelligence to control digital manufacturing
Scientists and engineers are constantly developing new materials with unique properties that can be used for 3D printing, but figuring out how to print with these materials can be a complex, costly conundrum. Often, an expert operator must use manual trial-and-error — possibly making thousands of prints — to determine ideal parameters that consistently print a new material effectively. These parameters include printing speed and how much material the printer deposits. MIT researchers have now used artificial intelligence to...

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Christopher Capozzola named senior associate dean for...
MIT Professor Christopher Capozzola has joined MIT Open Learning as senior associate dean, effective Aug. 1. Reporting to interim Vice President for Open Learning Eric Grimson, Capozzola will oversee open education offerings including OpenCourseWare, MITx, and MicroMasters, as well as the Digital Learning Lab, Digital Learning in Residential Education, and MIT Video Productions. Capozzola has a long history of participation in the MIT Open Learning mission. A member of the MITx Faculty Advisory Committee, Capozzola also has five courses...

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Engineers repurpose 19th-century photography technique to make...
Imagine stretching a piece of film to reveal a hidden message. Or checking an arm band’s color to gauge muscle mass. Or sporting a swimsuit that changes hue as you do laps. Such chameleon-like, color-shifting materials could be on the horizon, thanks to a photographic technique that’s been resurrected and repurposed by MIT engineers. By applying a 19th-century color photography technique to modern holographic materials, an MIT team has printed large-scale images onto elastic materials that when stretched can...

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J-PAL North America launches two partnership opportunities...
J-PAL North America, a research center in the MIT Department of Economics, has opened two Evaluation Incubators: the Housing Stability Evaluation Incubator and State and Local Evaluation Incubator. J-PAL North America’s Evaluation Incubators equip partners to use randomized evaluations — the most scientifically rigorous method used to study program impact — in order to generate evidence about programs and policies that alleviate poverty.  Evaluation Incubators offer organizations and government agencies the opportunity to expand the base of evidence on...

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For Danna Freedman, an impasse is an...
Asked once about the most difficult part of her research, Danna Freedman could not stop referring to obstacles as opportunities, and to challenges as excitement. “Every time we hit a barrier it enables us to discover new science,” she told an interviewer at Northwestern University in 2017, describing difficulties encountered in her research as among her most “rewarding” moments. For Freedman, MIT’s F.G. Keyes Professor of Chemistry, focusing on a difficult problem seems to be her idea of nirvana....

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MIT engineers develop stickers that can see...
Ultrasound imaging is a safe and noninvasive window into the body’s workings, providing clinicians with live images of a patient’s internal organs. To capture these images, trained technicians manipulate ultrasound wands and probes to direct sound waves into the body. These waves reflect back out to produce high-resolution images of a patient’s heart, lungs, and other deep organs. Currently, ultrasound imaging requires bulky and specialized equipment available only in hospitals and doctor’s offices. But a new design by MIT...

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New hardware offers faster computation for artificial...
As scientists push the boundaries of machine learning, the amount of time, energy, and money required to train increasingly complex neural network models is skyrocketing. A new area of artificial intelligence called analog deep learning promises faster computation with a fraction of the energy usage. Programmable resistors are the key building blocks in analog deep learning, just like transistors are the core elements for digital processors. By repeating arrays of programmable resistors in complex layers, researchers can create a...

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Emma Gibson: Optimizing health care logistics in...
Growing up in South Africa at the turn of the century, Emma Gibson saw the rise of the HIV/AIDS epidemic and its devastating impact on her home country, where many people lacked life-saving health care. At the time, Gibson was too young to understand what a sexually transmitted infection was, but she knew that HIV was infecting millions of South Africans and AIDS was taking hundreds of thousands of lives. “As a child, I was terrified by this monster...

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Friendly skies? Study charts Covid-19 odds for...
What are the chances you will contract Covid-19 on a plane flight? A study led by MIT scholars offers a calculation of that for the period from June 2020 through February 2021. While the conditions that applied at that stage of the Covid-19 pandemic differ from those of today, the study offers a method that could be adapted as the pandemic evolves. The study estimates that from mid-2020 through early 2021, the probability of getting Covid-19 on an airplane...

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Study finds Wikipedia influences judicial behavior
Mixed appraisals of one of the internet’s major resources, Wikipedia, are reflected in the slightly dystopian article “List of Wikipedia Scandals.” Yet billions of users routinely flock to the online, anonymously editable, encyclopedic knowledge bank for just about everything. How this unauthoritative source influences our discourse and decisions is hard to reliably trace. But a new study attempts to measure how knowledge gleaned from Wikipedia may play out in one specific realm: the courts. A team of researchers led...

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A global resource for better transportation systems
Launched in 2020, the MIT Mobility Initiative (MMI) is a unique cross-Institute initiative aimed at convening key stakeholders to drive innovation, while providing unbiased strategic direction to guide a deeper collective understanding of mobility challenges, and shape a mobility system that is sustainable, safe, clean, and accessible. “The mobility system is undergoing profound transformation with new technologies — autonomy, electrification, and AI — colliding with new and evolving priorities and objectives including decarbonization, public health, and social justice,” says...

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