Spring has sprung ... well, OK, not quite. But one big sign of the new season rises up this San Diego weekend, the circus comes to town and more.

In early 20th-century San Diego, the vaudeville scene was a dazzling spectacle, offering everything from slapstick comedy and death-defying stunts to high drama and soaring operatic arias.

John Sanseverino is the deputy project director for the Material Plasma Exposure eXperiment (MPEX). He is matrixed to MPEX from ORNL's Project Management Office. Dr. Sanseverino joined ORNL in the ...