Naturaleza y creatividad a raudales. Estrellas en #Islandia #Iceland
A história da Nasa em fotos — Ciência Hoje
<3 Gallery: Our Amazing Sun~The Sun, Solar Eclipses & Solar Phenomena. This sight must have really frightened people many hundreds of years ago. <3
Brass polyhedral sundial from 1578 approximates shape of the Alouette satellite, 1962, Canada "The equatorial dial on this polyhedral sundial is marked with all 24 hours (1..12, 1..12). It was made by Hans Koch in Munich in 1578. The original is in Munich."