Shuttle Imaging Radar

Shuttle Imaging Radar-C / X-Band Synthetic Aperture Radar

past Mission

Type

Instrument

Launch

April 9, 1994

Target

Earth

Objective

Image Earth in three different wavelengths

An instrument that collected data on terrestrial soil moisture content, ocean dynamics, volcanism, tectonics, soil erosion, and desertification, it flew on two space shuttle Endeavour missions and was a cooperative project of NASA and the German and Italian space agencies.

Shuttle Imaging Radar Stories

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The image is divided horizontally by an undulating line between a cloudscape forming a nebula along the bottom portion and a comparatively clear upper portion. Speckled across both portions is a starfield, showing innumerable stars of many sizes. The smallest of these are small, distant, and faint points of light. The largest of these appear larger, closer, brighter, and more fully resolved with 8-point diffraction spikes. The upper portion of the image is blueish, and has wispy translucent cloud-like streaks rising from the nebula below. The orangish cloudy formation in the bottom half varies in density and ranges from translucent to opaque. The stars vary in color, the majority of which have a blue or orange hue. The cloud-like structure of the nebula contains ridges, peaks, and valleys – an appearance very similar to a mountain range. Three long diffraction spikes from the top right edge of the image suggest the presence of a large star just out of view.

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