Could Echoes from Colliding Black Holes Prove Stephen Hawking's Greatest Prediction?

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January 26, 2022

Black Holes Could Echoes from Colliding Black Holes Prove Stephen Hawking's Greatest Prediction? Subtle signals from black hole mergers might confirm the existence of "Hawking radiation"—and gravitational-wave detectors may have already seen them By Anil Ananthaswamy

Health Care When Should You Get a COVID Test? It depends, but vaccinated people should generally wait five days after exposure before taking an antigen test. Here's why By Sara Reardon

Psychology Aha! Moments Pop Up from below the Level of Conscious Awareness People in a study handily solved puzzles while juggling an unrelated mental task by relying on spontaneous insight, not analytic thinking By Emily Laber-Warren

Natural Disasters FEMA to Start Tracking Race of Disaster-Aid Applicants The agency wants to examine if aid is distrubuted inequitably By Thomas Frank,E&E News

Quantum Physics Can We Gauge Quantum Time of Flight? Measuring the time it takes particles to travel between two points may be the best test yet for Bohmian mechanics By Anil Ananthaswamy

Epidemiology Dangerous Flu Comeback Expected atop COVID This Winter COVID shutdowns limited the spread of influenza in 2019–2020. Several factors could mean this season will be more severe By Tara Haelle

Cosmology The James Webb Space Telescope Could Solve One of Cosmology's Deepest Mysteries The observatory's unprecedented infrared measurements might at last bridge a growing rift between astronomers over how fast the universe is expanding By Daniel Leonard

Behavior Schoolkids Are Falling Victim to Disinformation and Conspiracy Fantasies Although children are prime targets, educators cannot figure out how best to teach them to separate fact from fiction By Melinda Wenner Moyer

Climate Change Tiger Sharks, Tracked Over Decades, Are Shifting Their Haunts With Ocean Warming Using a combination of fishing data and satellite tracking, scientists found that the sharks have shifted their range some 250 miles poleward over the last 40 years.  By Christopher Intagliata | 02:23

Education Teaching about Racism Is Essential for Education Lessons about racial injustice help students understand reality By The Editors

Vaccines How Immunocompromised People without Strong Vaccine Protection Are Coping with COVID People with diseases or treatments that suppress their immune system cannot count on the same protection most vaccinated people have By Tanya Lewis

Pollution Protecting People from Deadly Shellfish Indigenous communities along Alaska's coast are developing scientific networks to test shellfish for toxins because the state is not doing so By Karen Pinchin

FROM THE STORE Scientific American Health & Medicine, Volume 4, Issue 1

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FROM THE ARCHIVE Black Holes Swallow Neutron Stars in a Single Bite, New Results Suggest At long last, the definitive discovery completes a trifecta of astrophysical events that were forecast by gravitational-wave astronomers By Maddie Bender | July 2021

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