Hanneke Weitering, staff writer and producer at Space.com, discusses NASA's upcoming spacewalks that will be broadcast live. Each walk will make repairs to the International Space Station. Weitering notes that the live broadcast begins around 7 am ET, as the astronauts are getting ready for their days, and that even though it can get mundane, you just might catch something interesting. At the last spacewalk, Hanneke points out, the astronauts lost a heat shield that went floating into space.