Description: [caption id="" align="aligncenter" width="296" caption="This image from Mercury mission number four taken on Sept. 13, 1961 is just one of the many images that was written on by engineers. Credit: NASA/JSC/Arizona State University."][/caption] On May 16th, hundreds of thousands of people gathered in the vicinity of Cape Canaveral to watch the Endeavor, the NASA space shuttle,
Description: The term “personal equation” came into use in the 19th century as scientists found that observers have inherent biases: some anticipate events, and some report events after they have occurred. Recognition of the problem led to a spate of personal equation instruments: some measured biases of this sort, and some reduced the effect of personal errors. Most of these
Description: Physicist Dr. Stella S.R. Offner, Smithsonian Astrophysical Observatory, uses computer simulations to understand how stars form. She is also a WorldWide Telescope Ambassador. #Groundbreaker