A surgeon who just a decade ago was celebrated around the globe as a pioneer in stem cell transplants has been convicted of one count of “causing bodily harm,” a felony, in a Swedish court. The district court in Solna today found Paolo Macchiarini not guilty on other charges, including aggravated assault, that could have carried prison sentences of up to 4 years, relating to three...

U.S. District Court Judge Timothy Brooks today sentenced Simon Ang to 1 year and 1 day in prison for lying to FBI about his status as an inventor. He was also fined $5500. Ang, a former engineering professor at the University of Arkansas, Fayetteville, was ordered to report to federal prison on 20 July to begin serving his sentence, after which he will be on supervised release for 1...

An unknown number of women and girls are killed every year primarily because of their gender, murders known as “femicides” or “feminicides.” Although gender-related violence is a serious problem worldwide, official government data on the issue are often inaccurate, incomplete, or nonexistent. These “missing data” have real consequences, says Helena Suárez Val, a researcher at...

Polar bears typically depend on solid sea ice to hunt and keep their bellies full. To breathe, seals pop up in holes in the frozen seawater, and there the bears ambush and eat them. Now, however, scientists have discovered a group of polar bears in southeastern Greenland that does things differently, using a slushy mix of freshwater snow and ice as a platform to ambush seals. This new...

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Table of contents A version of this story appeared in Science, Vol 376, Issue 6599. Download PDF In June 2021, a jet stream charged with heat and chaotic energy from a nearby cyclone stalled over the Pacific Northwest. The mass...