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.

"This groundbreaking discovery of Mercurian glaciers extends our comprehension of the environmental parameters that could sustain life." When you purchase through links on our site, we may earn an ...

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 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 ...

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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