Space
No easy parking spot for first-ever comet landing
High-res images from the European Space Agency's Rosetta spacecraft show its target comet is covered in cliffs – great for science but scary for landing
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High-res images from the European Space Agency's Rosetta spacecraft show its target comet is covered in cliffs – great for science but scary for landing
The moon has odd lemon-like bulges on each side. A new model shows they were caused by the pull of Earth's gravity when the moon was young