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 ...

We have just entered a very favorable period for observing the so-called "elusive" planet Mercury. From now, until about May 13, you should be able to find it with not much difficulty. But how well do ...

For those who like to hunt for treasure, early March offers nice views of the solar system’s most elusive naked-eye planet. Mercury climbs into view in the west during the month’s first week, ...

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Mercury occurs naturally in minerals but usually isn't released into the air, where it can become harmful to humans. It is released and enters the atmosphere when coal, garbage and other items are ...