National Science Foundation (NSF)

MIT researchers have developed a method to grow artificial muscle tissue that twitches and flexes in multiple, coordinated directions, and could be useful for building “biohybrid” robots, reports Andrew Corselli for Tech Briefs. Prof. Ritu Raman explains that her lab is focused on creating “artificial muscle tissues that can be used to understand and treat muscle diseases that impact healthy human mobility,” and making “safe muscle-powered robots that can perform complex tasks in dangerous environments that are not suitable for humans.”

MIT researchers have developed a new method to grow artificial muscles for soft robots that can move in multiple directions, mimicking the iris of an eye, reports Mrigakshi Dixit for Interesting Engineering. The researchers developed a new technique called “stamping” to create “an artificial iris-like structure,” Dixit explains. “For this, they 3D-printed a tiny stamp, patterned with microscopic grooves. This stamp is then pressed into a soft hydrogel to create a blueprint for muscle growth.”

Researchers at MIT have discovered how “greenhouse gases are impacting Earth’s upper atmosphere and, in turn, the objects orbiting within it,” reports Grace Snelling for Fast Company. “If we don’t take action to be more responsible for operating our satellites, the impact is that there are going to be entire regions of low Earth orbit that could become uninhabitable for a satellite,” says graduate student William Parker.

MIT researchers have discovered that increased greenhouse gas emissions in the Earth’s upper atmosphere can “potentially cause catastrophic satellite collision in low-Earth orbit,” reports Bruce Dorminey for Forbes. “When the thermosphere contracts, the decreasing density reduces atmospheric drag — a force that pulls old satellites and other debris down to altitudes where they will encounter air molecules and burn up,” Dorminey explains. “Less drag therefore means extended lifetimes for space junk, which will litter sought-after regions for decades and increase the potential for collisions in orbit.”  

Researchers from MIT have “identified genes that the tuberculous bacteria rely on to survive and spread,” reports Allison DeAngelis for STAT. “Until now, very little was known about how tuberculous bacteria survived temperature changes, oxygen levels, humidity, and other environmental factors during the journey from one person’s lungs to another’s,” explains DeAngelis. 

MIT researchers have found that high levels of greenhouse gas emissions in the atmosphere may increase the risk of satellite collisions, reports Sachi Kitajima Mulkey for Grist. “The environment is very cluttered already. Satellites are constantly dodging right and left,” says graduate student William Parker. “As long as we are emitting greenhouse gases, we are increasing the probability that we see more collision events between objects in space.” 

Associated Press reporter Seth Borenstein writes that MIT scientists have found that climate change could “reduce the available space for satellites in low Earth orbit by anywhere from one-third to 82% by the end of the century, depending on how much carbon pollution is spewed.” Graduate student William Parker explains: “We rely on the atmosphere to clean up our debris. There’s no other way to remove debris. It’s trash. It’s garbage. And there are millions of pieces of it.”

A new study by MIT researchers finds that “climate change could threaten the future use of satellites and significantly reduce the number of spacecraft that can safety orbit Earth,” reports Julia Jacobo for ABC News. The researchers found “global warming is causing space debris to linger above the planet for longer periods of time, leaving less space for functioning satellites and posing a growing problem for the long-term use of Earth’s orbital space,” Jacobo explains. “Reducing greenhouse gas emissions doesn't just help us on Earth, it also has the potential to protect us from long-term sustainability issues in space,” explains graduate student William Parker. 

A study by MIT scientists has found that increased greenhouse gas emissions will shrink the Earth’s upper atmosphere causing a “drop in the satellite-carrying capacity of low Earth orbit,” repots Passant Rabie for Gizmodo. “Without an atmosphere, most space debris would remain in orbit indefinitely,” Parker said. “As the atmosphere thins, debris lingers longer, increasing the risk to active satellites. With the growing consequences of space debris, we can accommodate fewer debris-generating events.”

Researchers at MIT have found that climate change could raise the risk of satellite collisions, reports Justine Calma for The Verge. “We’ve really reached the end of that era of ‘space is big,’ and I think we should stop saying that,” says graduate student, William Parker. “People don’t realize that the space sustainability issue is really an issue that impacts them directly.”

Dezeen reporter Rima Sabina Aouf spotlights how MIT researchers have created a “thin and flexible fiber computer and woven it into clothes, suggesting a potential alternative to current wearable electronics.” Prof. Yoek Fink explains: "In the not-too-distant future, fiber computers will allow us to run apps and get valuable health care and safety services from simple everyday apparel.” He adds: "The convergence of classical fibers and fabrics with computation and machine learning has only begun.” 

MIT engineers have manufactured a programmable computer fiber that can be woven into clothing and used to help monitor the wearer’s vital signs, reports Jennifer Ouellette for Ars Technica. “The long-term objective is incorporating fiber computers into apparel that can sense and respond to changes in the surrounding environment and individual physiology,” Ouellette notes. 

New Scientist reporter Alex Wilkins spotlights how MIT researchers have created a “computer that can be stitched into clothes, made from chips that are connected in a thread of copper and elastic fiber.” U.S. Army and Navy members will  be testing the use of the fiber computer to help monitor health conditions and prevent injury during a monthlong mission to the Arctic. Prof. Yoel Fink explains: “We’re getting very close to a point where we could write apps for fabrics and begin to monitor our health and do all kinds of things that a phone, frankly, cannot do.” 

Research Assistants Maisy Lam and Laura Dodds speak with Tech Briefs reporter Andrew Corselli about their work developing MiFly, a new approach that “enables a drone to self-localize, or determine its position, in indoor, dark, and low-visibility environments.” Dodds explains: “Our high-level idea was we can place a millimeter wave sensor on the drone, and it can localize itself with respect to a sticker that we place on the wall, a millimeter wave tag. This would allow us to provide a localization system in these challenging environments with minimal infrastructure.”

In this interview (in Spanish), graduate students Suhan Kim and Yi-Hsuan (Nemo) Hsiao speak with Telemundo correspondent Miriam Arias about their work developing insect-sized robots to assist with agricultural needs. “There might be one year where you have a lot of bees in the field that help you pollinate everything. Maybe the next year, it might be affected by the temperature or something [and] you just don’t have enough bees to help you do so,” explains Hsiao.