This month, six of the planets will be visible in the night sky in an event called a planetary parade. Here’s how kids can ...

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.

A spacecraft has captured incredibly detailed images of Mercury during a close flyby. BepiColombo, a joint ESA-JAXA mission, ...

Stargazers will be treated to a rare seven-planet alignment in February. This is what scientists hope to learn.