Add Yahoo as a preferred source to see more of our stories on Google. Mercury, the closest planet to the sun, is only slightly larger than Earth's moon and is pockmarked with craters. The planet is ...

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 ...

"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 ...

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, ...

The source of the significant water ice deposits hidden in Mercury's polar regions has been a topic of debate among ...