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 ...

It's the third of four times Mercury will be moving in retrograde this year. Mercury isn't the only planet that will retrograde this year. Retrograde motion in astronomy is an apparent motion of ...

From its "absurd" core to the baffling chemical composition of its surface, Mercury is full of surprises – not least the planet's origins. But some answers could be held in rocks found in Cyprus.