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.

Since is has almost no atmosphere to retain heat, Mercury's surface experiences the greatest temperature variation of all the planets, ranging from 100 K at night to 700 K during the day.

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 ...

Stargazers are in for a treat this week as a planetary parade is set to take place - just a month after the last planetary spectacle.

Researchers have long-suspected ice to persist on Mercury, a hypothesis based on Earth-based radar studies of the small planet. But other substances beside water ... The bright patches match up cold ...

Could Mercury, the closest planet to the Sun ... stem from data collected by NASA’s Messenger probe, analyzed through ...

The alignment formation, however, will be short-lived because each planet moves at a different speed. On Friday, seven planets – Saturn, Mercury ... with a low temperature of 30 degrees.