Your personality can change from one hour to the next

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Psychology Personality Can Change from One Hour to the Next Studies show that people may experience enormous variability in personality traits throughout the course of the day By Francine Russo

Public Health We Need an Operation Warp Speed for Long COVID With millions of people affected and at least $1 trillion of economic value at stake, long COVID is our next national health emergency By Esther K. Choo,Scott Duke Kominers

Climate Change Wealthy Countries Have Blown Through Their Carbon Budgets Some countries have used up far more of the world’s carbon budget—the amount we can emit and still avoid more extreme climate disruption—than others By Andrea Thompson

Planetary Science NASA's Perseverance Rover May Already Have Evidence of Ancient Martian Life A half-kilogram’s worth of samples gathered by NASA’s Perseverance rover for eventual return to Earth holds weighty implications for life on Mars By Jonathan O'Callaghan

Behavior Conspiracy Theories Can Be Undermined with These Strategies, New Analysis Shows A new review finds that only some methods to counteract conspiracy beliefs are effective. Here’s what works and what doesn’t By Stephanie Pappas

Dark Matter Dark Matter Hunters Need Fresh Answers The hunt for dark matter is in crisis, and it’s time for radical new ideas to explain our universe By Joseph Howlett

Astronomy Science Has New Ideas about 'Oumuamua's Weirdness Our first known interstellar visitor is now long gone, but new research has some ideas about why it moved the way it did while it was in our cosmic neighborhood. By Lee Billings,Meghan Bartels,Jeffery DelViscio | 04:55

Climate Change This Part of the U.S. Will Suffer Most from Climate Change A new index that rates 70,000 U.S. communities on their climate vulnerability finds that parts of the Gulf Coast subject to flooding and economic and racial inequities are most under threat By Daniel Cusick,E&E News

FROM THE STORE Scientific American Volume 328, Issue 4

FROM THE ARCHIVE How Accurate Are Personality Tests? Precious few personality assessments are known to be reliable, and researchers say their use outside academia is debatable By Angus Chen | October 2018

WHAT WE'RE READING A Deadly Disease Stalks Deer and Elk. Do Predators Help or Hurt? In the Rockies, chronic wasting disease can devastate herds; scientists are looking for solutions. By Christine Peterson | High Country News | April 1, 2023

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