NASA, SpaceX launch Starliner astronauts' replacement crew

Following multiple delays, a SpaceX rocket carrying four astronauts finally blasted off Friday bound for the International Space Station on a flight that sets the stage for Starliner astronauts Butch Wilmore and Sunita Williams to finally come home after nearly 300 days in space. Mark Strassmann reports.

NASA, SpaceX launch Starliner astronauts' replacement crew
Following multiple delays, a SpaceX rocket carrying four astronauts finally blasted off Friday bound for the International Space Station on a flight that sets the stage for Starliner astronauts Butch Wilmore and Sunita Williams to finally come home after nearly 300 days in space. Mark Strassmann reports.