Mercury is a planet of extremes. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. The planet is named after the Roman deity Mercury, the speedy ...

Based on my research, which include image composites of two flyby views of Mercury from the MESSENGER spacecraft, I conclude that Mercury has not cooled and shrunken as much as previously thought.

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: ...

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, ...

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 ...