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In a notable change, workers’ share of GDP has dropped in recent decades. Why? A new study suggests it’s due to the rise of highly productive, capital-intensive “superstar” firms, which have come to dominate their markets.

We often use familiar landmarks to help us navigate. Neuroscientists have now found how the neurons in a specific brain region, the retrosplenial cortex, use both visual and spatial information to encode specific landmarks. http://mitsha.re/eCdA50yHLxs

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New images of the asteroid Pallas reveal a surface so heavily cratered researchers are calling it the “golf ball asteroid.” The cratering may be the result of Pallas’ tilted orbital track, which sends the space rock on a collision course through the asteroid belt. Learn more about Pallas' cratered surface: http://mitsha.re/M0GP50yjoun
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Most Americans have yet to use a 5G-connected device, but the next-generation cellular network will bring augmented reality, seamless streaming, and the internet of things. “What does this mean? It depends who you are,” Muriel Médard says. Learn more: http://mitsha.re/gD2U50yyAgo
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Engineers have developed a bionic “heart” — made of biological tissue and a robotic pumping system — that beats like the real thing. The device offers a more realistic model for testing artificial heart valves and other cardiac devices. Learn more about this device: http://mitsha.re/vJxx50yiwSz
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