Mercury is about 2.6 times smaller than Earth. How hot is Mercury? Mercury's sun-facing side is scorched by temperatures of around 430°C, hot enough to melt lead. Without a substantial atmosphere to ...

New images of the planet Mercury taken by a robotic spacecraft have just been released — and they show the scorched world in fascinating up-close detail. The European Space Agency (ESA ...

Flying 295 km above Mercury, it photographed icy craters, volcanic plains, and the planet's largest impact crater. Mercury reflects two-thirds less light than Earth's Moon, making its surface ...