Red giant star shedding gas, illustration

Red giant star shedding gas, illustration

F021/4522 Royalty Free

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Credit: MARK GARLICK/SCIENCE PHOTO LIBRARY

Caption: Illustration of a red giant star shedding its outer layers. Red giants are very evolved stars, that have depleted their stores of hydrogen. This leads to the core collapsing under gravity, which makes it hotter. This fresh heat pushes on the star's outermost layers and gradually the star loses mass as its atmosphere escapes, bit by bit, into space. This is how planetary nebulae are formed. In this picture, a red giant has already expelled much of its atmosphere in a series of shells. A nearby planet is seen in the foreground.

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Keywords: 3 dimensional, 3d, aged, ageing, aging, art, artwork, astronomical, astronomy, digitally generated, dying, evolved, exoplanet, expansion, extrasolar planet, giant star, illustration, no-one, nobody, old, planet, planetary nebula, red, red giant, shells, space, star, stellar, stellar evolution, three dimensional

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