Spines of saber-toothed cats tell a tale of the doomed species
Clues to saber-toothed cats’ demise are emerging from fossils entombed in California’s sticky La Brea Tar Pits. Fossils of the extinct predators preserved in tar reveal a diversity of spinal maladies. These…
In focus
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Interstellar solar sails hit a strange problem at 75% of light speed
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50 years ago, physicists found the speed of light
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190-year-old DNA reveals a hidden pangolin species
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Seals’ amphibious hearing developed a long, long time ago
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A slowing Atlantic current could unleash stronger California storms
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The standard model of particle physics passed one of its strictest tests yet
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A tiny diamond defect could reveal a mysterious new kind of magnetism
An illustration of the atomic structure of altermagnets. Neighboring atoms are rotated and their magnetic spins are flipped. Credit: Libor…
‘Forever chemicals’ could be aging dolphins beyond their years
Exposure to trace metals and “forever chemicals” may be prematurely aging dolphins, raising concerns about both marine pollution and human health impacts. …
World-first photonic time crystal opens a new era of light control
A THz electromagnetic wave induces strong, fast temporal modulations that realize a photonic time crystal: a crystal lattice in time…
Muons unveiled new details about a void in Egypt’s Great Pyramid
A nebulous void in Egypt’s Great Pyramid of Giza has been unveiled thanks to strange subatomic particles called muons. Scientists…
Subaru Telescope reveals a hidden giant planet
Astronomers have spotted a massive exoplanet and a rare brown dwarf by tracking tiny stellar motions and then imaging the…
Elephants can relearn how to live wild after years in captivity
After decades in tourist camps and circuses, African elephants that were returned to the wild are behaving, in many respects,…
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