PASADENA, Calif. — Jupiter’s clouds have deep roots. The multicolored bands that wrap around the planet reach hundreds of kilometers down into the atmosphere, NASA’s Juno spacecraft reveals, providing an unprecedented peek into the giant planet’s interior. “Whatever’s making those colors and stripes still exists pretty far down,” planetary scientist Scott Bolton, head of the […]

A bizarre new birdlike dino was part of an evolutionary extravaganza at the end of the age of dinosaurs. And it was a real stick-in-the-mud, too. Construction workers blasted Tongtianlong limosus out of the Earth near Ganzhou in southern China. “They very nearly blew this thing to smithereens,” says paleontologist Stephen Brusatte of the University […]

Unseasonable shrinking of sea ice could trigger another peril of climate change: increasing ice-overs on land that starve reindeer and threaten Siberian herders’ way of life. The worst of these events in the memory of Nenets herders on Russia’s Yamal Peninsula killed 61,000 of 275,000 reindeer in 2013, a blow to the herders’ livelihood that […]

Living on the bottom rungs of the social ladder may be enough to make you sick. A new study manipulating the pecking order of monkeys finds that low social status kicks the immune system into high gear, leading to unwanted inflammation akin to that in people with chronic diseases. The new study, in the Nov. […]

Narrow channels of moisture snaking through the atmosphere can bring storms that wreck beachfront bungalows — and leave oyster beds bare. Several of these channels, called atmospheric rivers (SN: 2/26/11, p. 20), dumped particularly heavy storms on California in early 2011. The resulting freshwater influx probably left part of the San Francisco Bay without enough […]

Pregnancy changes nearly everything about an expectant mother’s life. That includes her brain. Pregnancy selectively shrinks gray matter to make a mom’s brain more responsive to her baby, and those changes last for years, scientists report online December 19 in Nature Neuroscience. “This study, coupled with others, suggests that a woman’s reproductive history can have […]

It seems logical to expect cold water to freeze faster than hot, but some experiments have suggested the opposite. There’s now a new explanation for why hot water might freeze faster than cold under certain conditions. The phenomenon, known as the Mpemba effect, may be due to the properties of the bonds that link up […]

For the third year running, Earth’s thermostat broke a new record: 2016 was the warmest year since record-keeping began in 1880. Spurred by climate change and heat from a monster El Niño, the global average surface temperature last year was 0.94 degrees Celsius (1.69 degrees Fahrenheit) higher than the 20th century average of 13.9° C […]

Just days into the Trump administration, alarm bells are ringing in the scientific community amid confusing and whiplashing reports of gag orders and funding freezes at the Environmental Protection Agency, the U.S. Department of Agriculture and other federal agencies. Various on-again, off-again directives range from putting a hold on tweeting (mostly still on) to banning […]

Generations of gurus have exhorted, “Live in the moment!” For Lonni Sue Johnson, that’s all she can do. In 2007, viral encephalitis destroyed Johnson’s hippocampus. Without that crucial brain structure, Johnson lost most of her memories of the past and can’t form new ones. She literally lives in the present. In The Perpetual Now, science […]