Sigma Xi, The Scientific Research Society, an honorary organization dedicated to research in the pure and applied sciences. Individuals are elected to membership on the basis of their achievement or potential achievement in scientific research. The society publishes American Scientist, a bi-monthly. The organization was founded as Sigma Xi in 1886. In 1974 it absorbed the Scientific Research Society of America. Membership is approximately 110,000. Headquarters are in Research Triangle Park, North Carolina.
He's ventured to the abyss of black holes, wagered on the information paradox and floated around in zero gravity. Meet the man, the legend, the super scientist: Stephen Hawking.
We take much for granted about our universe, like it's getting bigger. What if the universe stopped expanding and started collapsing inward with a giant crunch?