Mercury is small, but full of surprises. Discover its frozen poles, strange craters, and active magnetic field in this deep dive into the closest planet to the Sun.

So maybe YOU have seen the planet Mercury. But most people have not, or at least they have not realized they’ve seen it. In an extremely unscientific email poll of fifteen of my friends and relatives, ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. An illustration of magnetic fields surrounding Mercury the closest planet to the sun. | Credit: ...

Mercury is a planet that just doesn't make sense. It's incredibly small yet hosts a relatively massive core. Mercury is so strange that astronomers have not been able to explain its properties with ...

Though Mercury is the closest planet to Earth, it’s one of the hardest to reach. Any spacecraft heading inward must fight the ...

The elusive planet Mercury reaches its furthest point from the sun on Friday (Jan. 12), with this separation allowing skywatchers a chance to spot the tiny planet. The fact that Mercury is the closest ...

Europe's Mercury-bound probe BepiColombo made its third close flyby of its target planet on Monday (June 19), revealing a surface riddled with craters, including one that just received a name. The ...