NASA. LARGE FORMAT. DEEP SPACE. This photographic... Lot 259

NASA. LARGE FORMAT. DEEP SPACE. This photographic picture is of two extremely bright stars illuminating a greenish haze in this image. This fog is made up of hydrogen and carbon compounds called polycyclic aromatic hydrocarbons (PAHs), which are found right here on Earth in vehicle exhaust and on carbonized grids. These molecules allow astronomers to visualize the periphery of gas clouds and study their structures in detail. 2010.period chromogenic print. Numbering in the margin on the front. 40.6 X 40.6CM with margins.