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Astronomy200 years ago, the Milky Way’s central black hole briefly awoke
The black hole is thought to be mostly quiet and dim. Now, glowing cosmic clouds have revealed the behemoth’s last flare.
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Quantum PhysicsQuantum computers could break the internet. Here’s how to save it
Today's encryption schemes will be vulnerable to future quantum computers, but new algorithms and a quantum internet could help.
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LifeFlowers pollinated by honeybees make lower-quality seeds
Honeybees are one of the most common pollinators. But their flower-visiting habits make it harder for some plants to produce good seeds.
By Jude Coleman -
PaleontologyMegalodon sharks may have become megapredators by running hot
O. megalodon sharks were warm-blooded megapredators. But colder-blooded great white sharks may have had an evolutionary edge when food sources dwindled.
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AnimalsA grisly trick helps snow flies survive freezing: self-amputation
When a snow fly’s leg begins to freeze, a quick amputation can prevent ice from spreading, keeping the cold-hardy insect alive.
By Meghan Rosen -
PhysicsJulian Muñoz has a ‘ruler’ that could size up the early universe
The measurement tool could lay out a distance scale for cosmic dawn —and offer clues to the nature of dark matter.
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AnimalsBottlenose dolphin moms use baby talk with their calves
When their babies are near, bottlenose dolphin moms modify their signature whistles, similar to human parents speaking in baby talk.
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AnthropologyFossil marks suggest hominids butchered one another around 1.45 million years ago
Researchers disagree whether new evidence of stone tool marks on a hominid leg bone reflects ancient cannibalism or perhaps some other, undetected behavior.
By Bruce Bower -
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Astronomy50 years ago, a search for proof that the Maya tracked comets came up short
The mystery of whether the ancient civilization tracked comets endures, but recent evidence hints the Maya tracked related meteor showers.
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Life1.6-billion-year-old steroid fossils hint at a lost world of microbial life
Molecular fossils suggest the existence of a lost world of primitive eukaryotes that dominated aquatic ecosystems from at least 1.6 billion to 0.8 billion years ago.
By Soumya Sagar