/u/driku12's posts in /r/askscience

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Are there any known ways to theoretically give a magnetic field to a planet that does not have one or has lost the one it previously had?

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Some species, like the Horseshoe Crab, have existed for a ludicrous amount of time nearly physically unchanged. Would a horseshoe crab from today be able to have offspring with one from, say, 400 million years ago, or would they not be compatible despite their appearance?

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
Are there any known ways to theoretically give a magnetic field to a planet that does not have one or has lost the one it previously had?	1
Some species, like the Horseshoe Crab, have existed for a ludicrous amount of time nearly physically unchanged. Would a horseshoe crab from today be able to have offspring with one from, say, 400 million years ago, or would they not be compatible despite their appearance?	1