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3–4 minutesThe Oldest Quasars in the Universe Shouldn’t Exist
Look far enough into space and you look back in time. In 2026, Euclid found the two most distant quasars ever seen — brilliant beacons from when the cosmos was just 670 million years old. The catch? The giant black holes powering them shouldn’t have existed yet. Here’s the mystery hiding in that ancient light. Read more
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4–7 minutesOlbers’ Paradox: Why the Night Sky Isn’t Bright
The night sky is mostly black — so obvious nobody questions it. But if the universe is infinite and full of endless stars, every point overhead should blaze as bright as the sun. It doesn’t. The reason the sky stays dark quietly reveals something enormous about the age of the cosmos itself. Read more
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6–9 minutesWhat Happened in the First Second After the Big Bang?
The Big Bang gets all the credit. But the first second after it is where everything was actually decided — the forces, the particles, the razor-thin margin that chose matter over nothingness. Everything that exists, including you, was determined in less time than a heartbeat. Here’s what really happened. Read more