Template:POTD/2016-01-13
Mercury is the smallest and closest to the Sun of the eight planets in the Solar System. It has no known natural satellites. The planet is named after the Roman deity Mercury, the messenger to the gods.Photograph: NASA/APL/CIS; edit: Jjron
 | This picture of the day has been featured on Portal:Solar System. |
 | This picture of the day has been featured on Portal:Outer space. |