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Neutrinos from a nearby galaxy reveal the secrets of a black hole

Neutrinos from a nearby galaxy reveal the secrets of a black hole

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In the zoo of subatomic particles, neutrinos are strange beasts. Unlike more familiar particles such as electrons and protons, ghostly neutrinos barely interact with normal matter: they can fly through a planet as if it isn’t even there. This makes them extremely difficult to detect and, for neutrinos from cosmic objects in the sky, even …

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Study investigates 'virgin birth' in aquarium sharks, even when potential mates are nearby

Study investigates ‘virgin birth’ in aquarium sharks, even when potential mates are nearby

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An adult zebra shark at the Shedd Aquarium’s Wild Reef exhibit. Credit: Shedd Aquarium / Brenna Hernandez Asexual reproduction is common in animals like starfish, deep-sea worms, and stick insects, but in vertebrates it is a rarity. A process called parthenogenesis allows some females to fertilize an egg with their own genetic material, producing offspring …

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