COVID lab-leak hearing, ozone-killing wildfires, how to stop an asteroid

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March 10, 2023

Politics Highly Politicized Congressional Hearings Air COVID Lab-Leak Hypothesis House Republicans have kicked off an investigation into how the pandemic began with witnesses who largely favor a lab origin By Mariana Lenharo,Lauren Wolf,Nature magazine

Astronomy How To Stop a (Potentially Killer) Asteroid We slammed a $330-million spaceship the size of a dairy cow into an asteroid the size of the Great Pyramid of Giza. Here's what we're learning about how our first step in planetary defense could save us in the future. By Lee Billings,Tulika Bose | 07:53

Climate Change Australia's Massive Wildfires Shredded the Ozone Layer--Now Scientists Know Why Smoke from the catastrophic 2019–2020 fires in Australia unleashed ozone-eating chlorine molecules into the stratosphere By Dyani Lewis,Nature magazine

Reproduction New Test Predicts a Life-Threatening Pregnancy Disorder Preeclampsia is a common pregnancy disorder, but doctors lacked a decisive way to predict its severity until now By Cari Shane

Anthropology What Stone-Wielding Macaques Can Tell Us about Early Human Tool Use Macaques using stones to open oil palm nuts can accidentally create stone flakes that look like early human tools By Zach Zorich

Climate Change Rich Countries Should Not Control the World's Sunlight, Experts Warn Interest is building in using solar geoengineering to combat climate warming, but experts warn it could have broad—and inequitable—impacts By Sara Schonhardt,E&E News

Sleep The Scientific Secret to Soothing Fussy Babies Some animals' babies physically relax when their parents whisk them away from danger. The same thing works for tiny, wailing humans. By Karen Hopkin | 04:46

Anthropology Humans Started Riding Horses 5,000 Years Ago, New Evidence Suggests Archaeologists have found a handful of human skeletons with characteristics that have been linked to horseback riding and are a millennium older than early depictions of humans riding horses By Meghan Bartels

FROM THE ARCHIVE Time Has No Meaning at the North Pole The utter lack of time zones, daylight and people creates a bizarre world By Katie Weeman | March 2020

WHAT WE'RE READING These 6 Tips Can Help You Skip the Daylight Saving Time Hangover As clocks march ahead and daylight saving time begins this weekend, you may be anxious about losing an hour of sleep and how to adjust to this change. By Deepa Burman and Hiren Muzumdar | NPR | Mar. 9, 2023

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