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# Popular Mechanics
This Mysterious Cosmic Substance May Be Older Than the Universe Itself—And It Just Might Be Immortal
It drives the movements of stars and galaxies, but dark matter is invisible. While it remains a colossal mystery, a study revealed how staggering its age could be. By Paul M. Sutter
A mysterious substance rules the present-day universe. New research suggests that it may have been born even before our cosmos as we know it, and that if it does eventually leave the cosmic scene, it won’t be for another trillion trillion years…if ever.
Welcome to the kingdom of the dark.
Consciousness Isn’t Just in Your Head—It May Be Altering Reality Itself, Scientists Say By Michael Natale
What if your mind is shaping the world around you in ways you can’t see ... or even imagine?
Ever since we published our very first issue 123 years ago—yes, we’re old—Popular Mechanics has endeavored to help you understand all kinds of technological marvels, from the tools in your shed, to the planes in the sky, to the tanks on the battlefield. But lately, we’ve really tried to dive deep into the world’s most complex machine: you.
Or, more specifically, the thing that makes you you: consciousness.
# TIME
The Return of the Dire Wolf Photographs by Robert Clark Story by Jeffrey Kluger
Romulus and Remus are doing what puppies do: chasing, tussling, nipping, nuzzling. But there’s something very un-puppylike about the snowy white 6-month olds—their size, for starters. At their young age they already measure nearly 4 ft. long, tip the scales at 80 lb., and could grow to 6 ft. and 150 lb. Then there’s their behavior: the angelic exuberance puppies exhibit in the presence of humans—trotting up for hugs, belly rubs, kisses—is completely absent. They keep their distance, retreating if a person approaches. Even one of the handlers who raised them from birth can get only so close before Romulus and Remus flinch and retreat. This isn’t domestic canine behavior, this is wild lupine behavior: the pups are wolves. Not only that, they’re dire wolves—which means they have cause to be lonely./.../World’s Most Detailed Map Built From a Grain of Brain Tissue
Summary: Scientists have created the most detailed wiring diagram of a mammalian brain to date, mapping every cell and synapse in a cubic millimeter of a mouse’s visual cortex. Using cutting-edge microscopy, AI, and 3D reconstruction, researchers captured more than 200,000 cells and over 500 million connections.
The work revealed surprising principles of brain organization, including new inhibitory cell behaviors and network-wide coordination. This achievement provides a foundational tool for understanding brain function, intelligence, and neurological disorders.
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