The spacecraft just wrapped up its first flyby of the cratered planet on Oct.1. It sent back Mercury images. The black and white images ... planet's surface is in the background.

Swathes of iridescent blue, sandy-coloured plains and delicate strands of greyish white ... (background). You’ve probably never seen Mercury. As the Solar System’s innermost planet, it ...

Here’s how it works. Mercury is the closest planet to the sun and also the smallest planet in the solar system. The small and cratered planet does not have any moons and zips around the sun ...