Mercury, also called quicksilver, is a chemical element in the periodic table that has the symbol Hg and atomic number 80. A heavy, silvery, transition metal, mercury is one of five elements that ...

We finally know how Mercury gets its dark gray color: an ancient carbon crust It explains a long-standing mystery about the small planet by Loren Grush ... Source Nature Geoscience Mar 7, 2016, 5: ...