Science
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The Sad Story Behind a Prehistoric Reptile’s ‘Grin’
Rhynchosaurs were dominant reptiles on Earth as dinosaurs emerged, but an anatomical quirk may have contributed to a difficult old age and their eventual extinction.
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Kilauea Erupts in Hawaii With ‘Incandescent’ Glow
The volcano on the Big Island gave hints in the past month that an eruption might be imminent.
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Gene Therapy May Offer Birth Control for Cats
A small study uses genetic engineering with the goal of curbing vast stray feline populations.
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How Did Birds First Take Off?
In 1993, “Jurassic Park” helped inspire 9-year-old Stephen Brusatte to become a paleontologist. So Dr. Brusatte was thrilled to advise the producers of last year’s “Jurassic World: Dominion”on what scientists had learned about dinosaurs since he was ...
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With a New, Improved ‘Einstein,’ Puzzlers Settle a Math Problem
Earlier this spring, tiling aficionados thought maybe they’d found the shape of their dreams. Now they’re certain.
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What Number Comes Next? Ask the Encyclopedia of Integer Sequences.
Some numbers are odd: 1, 3, 5, 7, 9, 11, 13, 15 … Some are even: 2, 4, 6, 8, 10, 12, 14, 16 … And then there are the puzzling “eban” numbers: 2, 4, 6, 30, 32, 34, 36, 40 … What number comes next? And why? These are questions that Neil Sloane, a ...
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Cheetah Deaths in India Mar Reintroduction Efforts
The animals had been extinct for more than 70 years in the country, which has just begun a program that brought 20 cheetahs from Africa to a wildlife sanctuary.
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Move Over Jupiter: Saturn Adds 62 More Moons to Its Count
In the red corner, Jupiter, the largest planet orbiting our sun, which shaped our solar system with its gravitational bulk. In the blue corner, Saturn, the magnificent ringed world with bewildering hexagonal storms at its poles. These two giant ...
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How Deep-Diving Sharks Stay Warm Will Take Your Breath Away
To survive as they seek food in freezing parts of the ocean, hammerhead sharks use a trick that hasn’t been observed in other fish.
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Why Have One ‘Impossible’ Ring Around Your World When You Could Have Two?
The News Earlier this year, astronomers announced that a tiny world beyond Neptune with a diameter about one-third that of Earth’s moon possessed a Saturn-like ring that should not be there. It now turns out that there are two such “impossible ...