Ancient Moon Melt Event May Explain 150-Million-Year Gap in Age Estimates
December 20, 2024 2 min read The moon may have melted 4.35 billion years ago—explaining a lunar age mystery By Payal Dhar edited by Sarah Lewin Frasier Javier Zayas Photography/Getty Images The moon is Earth’s closest neighbor in space and the only extraterrestrial body humans have visited. Yet scientists are still unsure exactly when a
Bird Flu Has Spread Out of Control after Mistakes by U.S. Government and Industry
Keith Poulsen’s jaw dropped when farmers showed him images on their cellphones at the World Dairy Expo in Wisconsin in October. A livestock veterinarian at the University of Wisconsin, Poulsen had seen sick cows before, with their noses dripping and udders slack. But the scale of the farmers’ efforts to treat the sick cows stunned
Tech Stereotypes Discourage Girls from Computing and Engineering as Early as Age 6
Steve Jobs, Bill Gates, Elon Musk, Jeff Bezos—men dominate the tech industry. In 2021 men made up 75 percent of employed computer scientists and 84 percent of employed engineers in the U.S. And that’s cause for concern. Consider the misuse of generative artificial intelligence tools for videos: deepfake pornography overwhelmingly targets women and—alarmingly—some teenage girls.
What Gives Christmas Trees Their Crisp, Cozy Scent?
December 20, 2024 3 min read Learn which molecules are responsible for giving Christmas trees their distinct, crisp-yet-spicy scent By Meghan Bartels edited by Lauren J. Young Iuliia Bondar/Getty Images Nothing smells quite like a Christmas tree—but where does that magical woodsy-yet-cozy aroma come from? You can thank a ubiquitous category of chemicals called terpenes.
Our Bodies Are So Ready to Celebrate the Rebirth of the Sun
December 20, 2024 4 min read Our Bodies Are So Ready to Celebrate the Rebirth of the Sun The winter solstice is the culmination of a period every year when each cell in our body literally craves more light By Gary Stix edited by Dean Visser Winter solstice in snowy forest. Iryna Khabliuk/Alamy Stock Photo
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