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 ...

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 ...