Mercury's dark surface may be alien in origin - SlashGear

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Mercury's dark surface may be alien in origin
SlashGear
A paper has been published this week which suggests that the surface of the planet Mercury may be comprised of cometary carbon. This means that carbon has littered the surface of Mercury, all of it from comets hurtling through space. In comparing Mercury ...
Mercury 'painted black' by passing cometsBBC News
Scientists find the 'invisible paint' that makes Mercury darker than darkWashington Post
Mercury Du