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kevinforsyth.net
To Reach the High Frontier: A History of U.S. Launch Vehicles
"A valuable contribution to the field of aerospace literature," this book includes an extensive overview of Delta history and development along with chapters on Atlas, Titan, Scout, Space Shuttle, and much more.
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Many other excellent books about spaceflight are recommended here.
17-Apr-07 | Einstein was right (or, at least half-right, so far)
Stanford researchers have announced that NASA’s Gravity Probe B has confirmed the geodetic effect (how mass warps spacetime) to within a 1% margin of error. This effect is one of two that were first predicted by Einstein’s general theory of relativity in 1920. Final results of the frame-dragging prediction (how a spinning mass drags spacetime around with it) are expected to be complete by the end of 2007.
GP-B was launched aboard Delta 304 on 20 April 2004, and spent a two-year tour making precise measurements of the effect Earth’s rotating mass has on the orbit of the spacecraft. (Stanford Press Release, 14-Apr-07)