GP-B

Gravity Probe B

past Mission

Type

Orbiter

Launch

April 20, 2004

Location

Earth orbit

Objective

Measure two key predictions of Einstein's general theory of relativity

Gravity Probe B was a NASA physics mission to investigate Albert Einstein's 1916 general theory of relativity – his theory of gravity.

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More Gravity Probe B (GP-B) News
Article
3 min read

Intersection of Art and Einstein: Barron Storey’s Gravity Probe B Illustrations

3 min read

Intersection of Art and Einstein: Barron Storey’s Gravity Probe B Illustrations

Article5 years ago
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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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