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A panorama created from images taken by the rover Curiosity while it was working at a site called ‘Rocknest’ in 2012. NASA/JPL-Caltech/Malin Space Science Systems

Ancient Mars may have had a carbon cycle − a new study suggests the red planet may have once been warmer, wetter and more favorable for life

NASA’s Curiosity rover has spotted carbon-containing minerals that can tell scientists more about what ancient Mars’ atmosphere may have looked like.
Flourishing is about your whole life being good, including the people and places around you. Westend61 via Getty Images

What makes people flourish? A new survey of more than 200,000 people across 22 countries looks for global patterns and local differences

A global study seeks insights into what helps people feel happy, healthy and satisfied – and what holds them back.
How many stairs would you climb for that payoff? Ozgur Donmaz/DigitalVision via Getty Images

Hard work feels worth it, but only after it’s done – new research on how people value effort

Researchers probed what psychologists call the ‘paradox of effort’ to learn how different people value work they could do in the future or that they’ve already accomplished in the past.
A small group of wild yellow-bellied marmots near the Rocky Mountain Biological Laboratory in Colorado. D.T. Blumstein

Wild marmots’ social networks reveal controversial evolutionary theory in action

Multilevel selection is a controversial concept originally proposed by Darwin. A new study found evidence for it in the wild in a group of marmots scientists have been observing for more than 60 years.
Your skin cells can generate electricity when wounded. Torsten Wittmann, University of California, San Francisco/NIH via Flickr

Cells lining your skin and organs can generate electricity when injured − potentially opening new doors to treating wounds

Textbooks usually depict the epithelial cells encasing the interior and exterior of your body as passive barriers. But researchers discovered they can produce electrical signals like neurons.

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