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Astronomers have found a star with a 99.9% pure oxygen atmosphere. This strange star Dox is the only of its kind in the known universe.


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Behold the white dwarf Dox.

A newly discovered star is unlike any ever found. With an outermost layer of 99.9 percent pure oxygen, its atmosphere is the most oxygen-rich in the known universe. Heck, it makes Earth's meager 21 percent look downright suffocating.

The strange stellar oddity is a radically new type of white dwarf star, and was discovered by a team of Brazilian astronomers led by Kepler de Souza Oliveira at the Federal University of Rio Grande do Sul in Brazil. The star is unique in the known pool of 32,000 white dwarf stars, and is the only known star of any kind with an almost pure oxygen atmosphere. The new white dwarf has a mouthful of a name—SDSSJ124043.01+671034.68—but has been nicknamed 'Dox' (pronounced Dee-Awks) by Kepler's team. 

The discovery was reported today in a paper in the journal Science.

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