The James Webb Telescope Is Changing Astronomers’ Understanding of the Ancient Cosmos

To test these new ideas, researchers are exploring the infant universe through simulations. “There’s actually been really remarkable progress since Webb launched, really in the last year or so, on numerical simulations,” Somerville told attendees, adding that these new simulations “perhaps are more appropriate and more informative for interpreting observations in the high-redshift universe.” As…

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Best Air Purifiers (2026): Coway, AirDoctor, IQAir, and More

Compare Our Picks Recommended With Reservations Photograph: Lisa Wood Shapiro BlueAir PetAir Pro for $500: As the owner of two cats, I really wanted to love Blueair’s PetAir Pro, a new addition to the growing market of pet-pitched air purifiers. The PetAir promises a unique pet-owner experience. It has a Pet Mode that senses when…

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3 Quietest Dishwashers of 2026, Lab-Tested and Reviewed

Manufacturers report a model’s noise level in decibels, averaging the readings over the dishwasher’s full cycle. But that isn’t necessarily the best indicator of noise output. So CR’s panel of judges sits and listens to each dishwasher tested through its entire cycle, even if it takes 3 hours. “People remember a noise when it’s at…

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Dodge Journey SUV Recalled to Fix Backup Camera

Vehicles recalled: Dodge Journey SUVs manufactured between May 2, 2019, and Dec. 21, 2020, and Ram ProMaster vans manufactured between May 2, 2019, and Nov. 27, 2021. The problem: A faulty backup camera means these vehicles do not comply with Federal Motor Vehicle Safety Standard (FMVSS) number 111, “Rear Visibility.” The fix: Dodge and Ram dealerships…

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What You Should Know About Kratom

While kratom is not categorized as an opioid, like heroin and morphine, it can produce opioid-like effects in users, such as relaxation and pain relief. The leaves contain two major psychoactive ingredients, mitragynine and 7-hydroxymitragynine (7-OH), that attach to the same parts of the brain as opioids, called mu-opioid receptors. However, kratom is what’s known…

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