There's a new NASA chief in town. Today (May 3), former U.S. senator Bill Nelson (D-Fla.), 78, was sworn in as the agency's 14th administrator.

Nelson said he wanted both previous administrators there “to show the continuity and bipartisanship with which you run the nation’s space program, particularly NASA.”

The Senate has confirmed Bill Nelson, a former Florida senator who once flew on the space shuttle, to be the next NASA administrator.