Point, counterpointIn “The SN 10: These scientists defy limits to tackle big problems” (SN: 10/13/18, p. 18), Science News profiled 10 early- and mid-career scientists who are pushing boundaries to answer pressing questions facing science and society. Some readers had strong reactions to the profiles. Charles Eby praised stories about the SN 10 scientists. “Of […]
Every week, Ellen Greytak checks DNA profiles in a genealogy database. She’s not searching for long-lost relatives. She’s out to find family members of unknown assailants in rape and murder cases. Greytak is director of bioinformatics at Parabon NanoLabs in Reston, Va. Since May, the company has used genetic genealogy, a forensic technique for tracking […]
The grim reality of climate change grabbed center stage in 2018. This is the year we learned that the 2015 Paris Agreement on global warming won’t be enough to forestall significant impacts of climate change. And a new field of research explicitly attributed some extreme weather events to human-caused climate change. This one-two punch made […]
Every field of science has its favorite anniversary. For physics, it’s Newton’s Principia of 1687, the book that introduced the laws of motion and gravity. Biology celebrates Darwin’s On the Origin of Species (1859) along with his birthday (1809). Astronomy fans commemorate 1543, when Copernicus placed the sun at the center of the solar system. […]
Mosquito researchers may have hatched a new plan to control the bloodsuckers: Break their eggshells. A protein called eggshell organizing factor 1, or EOF1, is necessary for some mosquito species’ eggs and embryos to develop properly, a new study finds. Genetically disrupting production of that protein in Aedes aegypti mosquitoes caused about 60 percent of […]
Bioengineered blood vessels are one step closer to being available for patients. In clinical trials, these vessels were installed in the arms of dialysis patients and successfully integrated into their circulatory systems, researchers report online March 27 in Science Translational Medicine. The new blood vessels, which eventually host the patient’s own cells after implantation, are […]
Geneticists have found a scent-sniffer protein molecule in mosquito antennae that — if somehow jammed — might leave a bloodsucker confused about whether we’re human enough to bite. Aedes aegypti mosquitoes, which can spread Zika and dengue, prefer human blood to the blood of other animals. A string of experiments now shows that a protein […]
For nearly a year, U.S. astronauts and identical twins Scott and Mark Kelly lived lives that were as separate as Earth and space — literally. While Mark enjoyed retirement in Tucson, his brother floated in microgravity aboard the International Space Station orbiting about 400 kilometers above the planet. Ten science teams studied the twins’ physiology, […]
It’s hard to say which scientist was the first to set eyes on the glowing ring that makes up the world’s first image of a black hole. But astrophysicist Kazunori Akiyama was certainly one of the earliest. The image, released to the public on April 10, revealed the dark shadow of the supermassive black hole […]
Divers monitoring coral reefs off St. Thomas in the U.S. Virgin Islands in January noticed something alarming: Big white lesions were eating into the colorful tissues of hundreds of stony corals. Some corals were dead by the next day — only their stark white skeletons remained. Others languished for up to two weeks. Within four […]