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
Description: [caption id="attachment_7327" align="aligncenter" width="432" caption="The Smithsonian Institution Building, "The Castle""][/caption] When I'm walking around the National Mall, I often hear people exclaim, "There's the Smithsonian!" as they point to the large red Smithsonian Castle near the Metro exit; something I also would have assumed before my first visit to the Mall.