A spacecraft has beamed back some of the best close-up photos yet of Mercury's north pole.The European and Japanese robotic explorer swooped as close as 183 miles (295 kilometers) above Mercury's ...

Here’s how it works. New photos of Mercury's mysterious north pole reveal a glimpse of the permanently dark, frigid craters that may hold ice dozens of feet thick, even though Mercury is the ...

A spacecraft has beamed back some of the best close-up photos ever of Mercury’s north pole. The European Space Agency released the snapshots Thursday, revealing the permanently shadowed craters ...