Earth observation of a sunrise
auteur: Nasa/Novapix
référence: t-nua10-00004
Image Size 300 DPI: 25 * 16 cm
The colors of this sunrise scene provide insights into the relative density of the Earth's atmosphere. This scene captures the silhouette of several thunderstorms with their cirrus anvil tops spreading out against the tropopause - the top of the lowest layer of atmosphere, the troposphere which is also the most dense and refracts light at the red end of the spectrum while the blues refract in the stratosphere, the highest layer. Image taken from the space shuttle Endeavour in september 1992.