Jeevan (Himesh Patel) and Kirsten (Matilda Lawler) brace for a looming pandemic in Station Eleven. Parrish Lewis/HBO Max hide caption
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Microglia, specialized cells like the one seen in the center of this image, can restrain the accumulation of beta-amyloid protein (plaques in orange) that are a hallmark of Alzheimer's disease. But the cells sometimes contribute to the progression of the illness, researchers say. Juan Gaertner/Science Source hide caption
Friday
Julio Francisco waits for people to show up wanting a COVID-19 test on January 13, 2022 in Miami, Florida. Joe Raedle/Getty Images hide caption
A health worker wearing protective clothing shows people lining up at a testing center in Beijing, China. Kevin Frayer/Getty Images hide caption
Omicron Around The World: From "Zero COVID" To Rising Cases
Thursday
A computer-generated image of the omicron variant of the coronavirus. Uma Shankar Sharma/Getty Images hide caption
A glass is filled in with water on April 27, 2014 in Paris. Scientists studying what makes us thirsty have found the body checks in on our water consumption in several different ways. FRANCK FIFE/AFP via Getty Images hide caption
Thirsty? Here's how your brain answers that question
Dr. Chikwe Ihekweazu is the head of the World Health Organization's newly created Hub for Pandemic and Epidemic Intelligence. "We have to get better at convincing leaders to use the data we provide and not their political instinct or whatever else their decisions are based on. And that's not easy," he says. Afolabi Sotunde/Reuters hide caption
Two chimpanzees roam the grounds of Chimp Haven in Louisiana. Many former research chimpanzees have been sent to retire at the sanctuary. Images provided by Chimp Haven hide caption
The NIH is 'largely finished' moving its former research chimps to a sanctuary
Gas stoves emit pollution into your house and are connected to a production and supply system that leaks the powerful greenhouse gas methane during drilling, fracking, processing and transport. Meredith Miotke for NPR hide caption
Gas stoves leak climate-warming methane even when they're off
The radio telescope in Parkes, Australia is used by SETI researchers to search for potentially alien radio transmissions. TORSTEN BLACKWOOD/AFP via Getty Images hide caption
Wednesday
This family photo shows D.J. Ferguson initially being treated at Milford, Mass., Regional Medical Center. Brigham and Women's Hospital in Boston is defending itself after Ferguson's family claimed he was denied a new heart for refusing to be vaccinated against COVID-19. Tracey Ferguson file photo/via AP hide caption
A monoclonal treatment site in Miami is closed on Tuesday after the Food and Drug Administration curbed use of some treatments. Joe Raedle/Getty Images hide caption
Eric Balken in part of Glen Canyon. Claire Harbage/NPR hide caption
Megadrought fuels debate over whether a flooded canyon should reemerge
Volcanic ash covers rooftops and vegetation in an area of Tonga last week. Thick ash on an airport runway was delaying aid deliveries to the Pacific island nation, where significant damage was reported. CPL Vanessa Parker/New Zealand Defense Force/via AP hide caption
Tuesday
Masked White Plains, N.Y., High School students walk between classes last year. A day after a judge overturned New York's mask mandate, an appellate judge temporarily restored it as the state prepares an appeal. Mark Lennihan/AP file photo hide caption