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Why is Jupiter a failed star?

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"Nearly all scientists who study the formation of planets believe that Jupiter formed in a very different manner than stars form, so that calling Jupiter a 'failed star' is misleading. Stars form directly from the collapse of dense clouds of interstellar gas and dust. read more

Jupiter is the biggest planet in our solar system, but it isn’t massive enough to be a star. Stars require a certain amount of mass to spark thermonuclear fusion – in other words, to shine. Jupiter is the largest planet in our solar system. read more

"Jupiter is called a failed star because it is made of the same elements (hydrogen and helium) as is the Sun, but it is not massive enough to have the internal pressure and temperature necessary to cause hydrogen to fuse to helium, the energy source that powers the sun and most other stars. read more

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Water clouds discovered beyond the solar system for the ...
Source: dailymail.co.uk

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