A close up photo showing a blob of mercury sitting safely inside a glass container. At room temperature this metal is in liquid form, the liquid metal moving around like something out of the movie Terminator 2 Judgment Day. Mercury can...

A photo of the planet Mercury showing its rugged, scarred surface which looks similar to that of the Earth's moon.

A single mosaic image made from 18 pictures as Mariner 10 approached Mercury.

A brief history of the development of barometer is given. Pictures of historical types of barometers are shown. Links to related topics.