Videos: SpaceX’s Ken Bowersox Talks Safety With Miles O’Brien

TWIS exclusive – SpaceX issues a financial challenge to the big space contractors, Last shuttle launches slip, video diary from Mars 500 crew, check out Japan’s solar sail, kids discover Mars Cave, John Glenn joins the save shuttle fray, new Hubble images show star formation, and Ariane launches.

The full interview with Ken Bowersox is below.