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News
Muscle repair fails when stem cells lose their identity
6+ hour, 31+ min ago (1333+ words) A protein that guards the tips of chromosomes turns out to be what keeps muscle able to repair itself for a lifetime. When you pull a muscle, specialized repair cells along the fibers spring into action to rebuild the tissue....
Child mind development looks surprisingly similar across cultures
1+ hour, 2+ min ago (881+ words) Adults across six countries share surprisingly similar beliefs about when children develop senses, emotions, reasoning, and self control. Children gain new ways of sensing, feeling, remembering, and deciding as they grow. Decades of developmental work have measured many of these…...
Mussels stop eating when they sense parasites nearby
2+ hour, 42+ min ago (992+ words) Blue mussels can sense signs of parasite danger in the water and reduce their feeding, revealing a hidden tradeoff between food and infection. A blue mussel spends its whole life glued to one spot, pulling seawater through its body and…...
Siberia’s methane emissions have surged, and wildfires are only half the story
3+ hour, 10+ min ago (1262+ words) Siberia is releasing far more methane than it did a decade ago, raising new concerns about natural emissions in a warming Arctic. Eastern Siberia has been drying out for more than a decade, and drier ground is supposed to mean…...
Violent star system is blasting giant spirals across space
4+ hour, 4+ min ago (759+ words) Hubble has captured stunning new images of R Aquarii, a violent binary star system that blasts glowing spirals of gas across space. Today’s Image of the Day features a star system that looks more like a cosmic storm than a…...
Astronomers caught a dying star’s first light, but something was missing
4+ hour, 6+ min ago (1129+ words) A massive star exploded 500 million years ago, but its expected gamma-ray burst was mysteriously missing. When a star stripped of its outer gas shell collapses into a black hole, the hot disk around it can fuel both a supernova explosion…...
Astronomers find evidence of liquid recently flowing on the surface of Pluto
4+ hour, 16+ min ago (1152+ words) Pluto’s surface stays at about −393°F (−236°C), cold enough that nitrogen there isn’t a gas at all but a glacier miles deep. Nothing about a world that cold suggests liquid could be flowing on its surface. But dark streaks along…...
Ravens are eating sage-grouse eggs, so scientists targeted their eggs instead
4+ hour, 28+ min ago (1041+ words) Researchers found that oiling raven eggs more than doubled sage-grouse nest survival and helped boost populations at treated sites. A greater sage-grouse lays her eggs on bare ground under a sagebrush and sits on them for about a month, which…...
Heatwaves called ‘snow-eaters’ are melting the West’s snowpack twice as fast as ever recorded
4+ hour, 57+ min ago (1171+ words) A newly defined type of heatwave is reshaping spring across the western U.S., with major consequences for snowpack, floods, and water supplies. Mountain snow naturally melts by day and refreezes at night, pacing the release of water throughout the spring. When…...
Extraordinary experiences can be frightening, but their impact is often positive
5+ hour, 39+ min ago (1181+ words) Unexplained experiences like sensing a presence or hearing a voice are common, and many people say they have a positive effect on their lives. Hearing phantom voices, sensing an unseen presence, or catching glimpses of the unexplainable are experiences reported…...