Radioactive ‘snowflakes’ act like the tiniest nuclear bombs in the universe

Tiny snowflakes of radioactive uranium that set off huge nuclear would possibly clarify a of the universe’s extra star explosions.

As smallish stars die, they cool into husks of their former selves often called white dwarfs. New analysis proposes that atoms of uranium sink to the facilities of those getting old white dwarf stars as they cool, freezing into snowflake-like crystals no larger than grains of sand. There, these “snowflakes” can act as a number of the tiniest nuclear bombs within the universe, turning into the “spark that units off the keg,” mentioned research co-author Matt Caplan, a theoretical physicist at Illinois State



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