A new study indicates that Mercury's core-mantle boundary (CMB) may possess a diamond layer that extends up to 18 kilometers ...

The innermost planet of our solar system, Mercury, is barely wider than the continental United States, and is often seen as a ...

Mercury has the shortest and fastest orbit around the Sun and experiences dramatic temperature changes as it rotates. It is a world of extremes. Explore facts about our solar system's fastest planet.

NASA's Messenger mission unveiled the first picture of the planet Mercury taken by an orbiting spacecraft on Tuesday, and promised to provide more goodies in the days and months to come.

He can no longer eat the fish he catches from the lake near his home in Georgia. Mercury from industry has seeped into its waters. At the bottom of the food chain, bacteria here transform this ...

According to NASA, the planetary phenomenon will be clearest about 45 minutes before sunrise, low in the eastern sky and appearing near the moon. Venus and Saturn will be the easiest to spot — but for ...