For years, a French mathematician searched for a proof that a gigantic number is prime. His method is still used 150 years ...

Many heavy atomic nuclei are shaped more or less like squashed rugby balls than fully inflated ones, according to a ...

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Americium is one of the lesser-known synthetic elements, first created in 1944 during the Manhattan Project. The isotope of interest for space is americium-241. Its half-life is a staggering 432 years ...