Week in Science: Vitamin D may delay aging in cells

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May 23—This week, mitochondria are surprising scientists: They communicate with each other and may be directly related to human health. Plus, vitamin D may delay aging in cells; and scientists are trying to refreeze the melting Arctic. Enjoy and have a great weekend! —Andrea Gawrylewski, Chief Newsletter Editor

Top Stories

Mitochondria Are More Than Powerhouses—They're the Motherboard of the Cell When these energy-giving organelles thrive, so do we Martin Picard

DNA Studies Uncover Unexpected Evolutionary Changes in Modern Humans Mounting evidence from genome studies indicates that, contrary to received wisdom, our species has undergone profound biological adaptation in its recent evolutionary past Kermit Pattison

Vitamin D May Slow Cells' Aging Vitamin D supplements may help prevent the loss of telomeres, DNA sequences that shrink with aging, a large study shows. But the health effects aren't yet clear Stephanie Pappas

A custom publication sponsored by The Buck Institute Is Human Aging Reversible? The geroscience hypothesis holds that targeting molecular pathways that drive aging can give us more healthy years. Evidence is mounting. Learn more.

Astronomers' Epic Quest to Witness the Cosmic Dawn A new generation of telescopes could peer back to the earliest epochs of the universe Rebecca Boyle

What RFK, Jr., Got Wrong about Autism, according to Scientists A coalition of autism scientists has formed to counter RFK, Jr.'s misrepresentations of science and of autism spectrum disorder Allison Parshall

Inside the Bold Geoengineering Work to Refreeze the Arctic's Disappearing Ice Researchers are trying to rebuild sea ice above the Arctic Circle so it can reflect the sun's warming rays, slowing climate change Alec Luhn

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How Do Doctors Treat 'Aggressive' Prostate Cancer like Joe Biden's? What we know about Joe Biden's cancer, prognosis and treatment options Clara Moskowitz

A Good Workout Gets Your Helpful Gut Microbes in Shape, Too A workout boosts the fitness of your gut microbiome. This creates molecules that aids your immune system, metabolism, and more Lydia Denworth

NOAA Has 'Ground to a Halt' amid Backlog of Unsigned Contracts A NOAA official says that "everything has ground to a halt" at the agency as staffers have waited for Secretary of Commerce Howard Lutnick to review more than 200 agreements Scott Waldman, E&E News

The Quantum Bubble That Could Destroy the Universe A freak particle physics process could wipe out all galaxies and life—but it's wildly unlikely Matthew von Hippel

Single Atom Acts as a Quantum Computer and Simulates Molecules A quantum computer has used a single atom to model the complex dynamics of organic molecules interacting with light Davide Castelvecchi, Nature magazine

Why Tornado Season Has Been So Destructive Several devastating tornado outbreaks have cut swaths of destruction across the U.S. What's driving these damaging storms? Andrea Thompson

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