Mercury, the closest planet to the sun, is only slightly larger than Earth's moon and is pockmarked with craters. The planet is visible to the unaided eye and as such as has long been known to humans.

Mercury is the innermost and smallest of the eight major planets in our Solar System, orbiting closest to the Sun. Though ...

Mercury is the closest planet to the sun, and you would be forgiven for thinking it’s just a boring lump of rock. After all, there’s nothing interesting on it like aliens or places to drink. Still, ...

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 ...

Like an ambiguous game of telephone, messages get lost in translation when Mercury squares Jupiter, and no one’s quite sure ...

Read between the lines, or swim in a sea of confusion! On Feb. 20, Mercury in Pisces will square Jupiter in Gemini, creating a cosmic clash between two very different energies — Mercury wants the ...