Science
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No, Female Mice Are Not More Erratic
A new study challenges a century-old assumption used to exclude female mice from scientific research because of their hormonal cycles.
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After Long Delay, Moderna Pays N.I.H. for Covid Vaccine Technique
Moderna has paid $400 million to the government for a chemical technique key to its vaccine. But the parties are…
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Cocaine Bear, Meet Cannabis Raccoon and McFlurry Skunk
Wild animals eat the strangest things. That can be a problem, for them and for us.
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A Doodle Reveals da Vinci’s Early Deconstruction of Gravity
When Leonardo da Vinci wasn’t painting a masterpiece or dreaming up flying machines, he was pondering the mysteries of gravity.…
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For the First Time, Genetically Modified Trees Have Been Planted in a U.S. Forest
Living Carbon, a biotechnology company, hopes its seedlings can help manage climate change. But wider use of its trees may…
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Webb Telescope Spots a Distant Spiral Galaxy Like Our Own
LEDA 2046648 has an eerie resemblance to our Milky Way galaxy, but it likes a billion light-years away.
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Cockatoos Know How to Pick the Right Tools for the Job
The job, in these experiments, was getting a cashew out of a puzzle box.
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SpaceX Test Fires 31 Engines on the Most Powerful Rocket Ever
The ignition of the Super Heavy booster may set up an uncrewed orbital flight test next month of Starship, the…
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There’s a Ring Around This Dwarf Planet. It Shouldn’t Be There.
Quaoar, which orbits the sun in the distant Kuiper belt, is the latest small object shown to have a ring…
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The Biggest Penguin That Ever Existed Was a ‘Monster Bird’
Fossils found in New Zealand highlight an era after the dinosaurs when giant flightless birds prowled the seas for prey.