Williams, who resides in Houston, Texas, with her husband Michael J Williams, a federal marshal, reportedly has an estimated net worth of $5 million.

America is eagerly awaiting the return of two astronauts who have been stuck on the ISS since last June. Here's who they are.

Sunita Williams and Butch Wilmore have completed over 900 hours of research involving 150 scientific experiments and technology demonstrations during their extended stay on the orbiting laboratory.