• Mann Humanizing Machine

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    Many soldiers had come back from World War II missing limbs. Cable-powered arms were common for above-elbow amputees. That changed in the 1960s when, in a small laboratory at the Massachusetts Institute of Technology, a fifty-five year-old man was fitted with an experimental robotic arm
  • Water on Mars: Major Breakthrough or Another Day at the Office?

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    News of water on Mars created quite a stir, even though researchers saw it coming
  • Are Calcium Supplements Worth Taking? Depends on Who You Ask.

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    Most health agencies recommend that older adults take 1,000-1,200 milligrams of calcium per day to stave off bone loss, or “osteoporosis.” About 43 percent of U.S. adults follow that advice by taking supplements, but in some countries, including New Zealand, calcium-supplement use is falling
  • Climate Change’s Paradox: Rising Sea Levels Trigger a Retreat

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    Even as climate change causes sea levels to rise, inundating coastlines, new research suggests it will also cause a periodic drop in sea levels in the tropical southwestern Pacific.
  • Why Scientists Disagree Over Testing Brain Implants for Depression

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    One research group moves forward with plans for new clinical trials, while another focuses on better understanding how the device works.
  • Study Finds Overlooked Relationship in Human Seafood Consumption

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    An interdisciplinary team of researchers has found a major gap in studies of fish: beneficial nutrients and toxins, and their possible interactions, are rarely considered together.

Newly Discovered ‘Stop Neurons’ Could Save Your Life

Neuroscientists have known since the 1960s what nerves tell a person’s legs to step off the curb to cross the street. But until now, they had no idea which hold the person back to avoid getting hit by a car. Margaux Phares reports in NOVA Next.