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Irish Mirror
Irish Mirror
Lifestyle
Anna Catherine Martin

Jupiter grew so big by feasting on other planets and is almost 320 times the size of Earth

Jupiter is more than huge. To put it into perspective it is equivalent to 318 Earths or twice the size of all the rest of our solar system’s planets combined.

If that’s not scary enough to think about, scientists think they have worked out how the King of Planets got to be so big and it’s equally terrifying - it feasts on others.

That’s right, an article published in the journal Astronomy and Astrophysics says that Jupiter got to its size by eating other planets.

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The paper suggests that Jupiter has the remains of other planets hidden inside it, a theory that has existed for a while but Nasa’s Juno space probe was able to get some data about its core providing more evidence.

Under the gas clouds and raging hurricanes that dominate Jupiter’s environment, Juno discovered that the beast didn’t have a homogenous and well-mixed composition.

What they found was a higher concentration of metals - elements heavier than hydrogen and helium - towards the centre of the planet.

The team of astronomers says the most likely explanation is that Jupiter absorbed numbers of ‘planetesimals' or put very simply baby planets, getting bigger and bigger.

Although it all sounds very scary, fear not earthlings Jupiter is a healthy 742 million km away so we won’t be eaten any time soon.

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