Launched on April 20, 2004, Gravity Probe B (GP-B) was a collaboration between Stanford University and NASA designed to test two previously untested aspects of Albert Einstein’s general theory of relativity. via NASA http://www.nasa.gov/image-feature/bringing-einsteins-concepts-to-life-through-art
With a high of 86F and a low of 62F. Current temp 56 Current condition Sunny.