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did the core of earth use to be a sun?

I have watched and read a lot of things about space but I've never heard anything about that the core of earth might have been the remains of a small star
you figure most planets are just large rocks but we have a molten iron nickle core like a sun has

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    Sep 30 2012: The core of the earth is said to be made of star stuff (as is all matter in our world), but it never began as a sun. The earth probably began when the sun was born in a great explosion, and matter was ejected. the matter was gravitationally attracted and in this way, planets were formed. Gas planets, being lighter, are farther out in the solar system. Everything that you see is made of star stuff.
    • Sep 30 2012: ya thanks i know all that but why do we have a hot liquid core when others that should dont? if you think about it there is a lot of suns that have come and gone. which leaves a lot of cores lying around waiting to be eaten up by other larger stars and black holes "verry large sun cores not producing light but sucking in all matter". if you also think about it jupter and saturn are sun sized but they have not ignited if they do and burn there fuel the core that will remaine will be earth size and start over by collecting all the dark matter it comes near "and i say dark matter because all that means is dirt that doesnt produce light and obsucures our view of the things that does" btw sorry about the bad grammer and spelling im not a auther im a thinker

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