Atlas V launches X-37B OTV-3

12/11/12 ~ 1:03 p.m.

An Atlas V rocket launches the third mission of the X-37B Orbital Test Vehicle (OTV) project. It is the second flight for the first of the

two X-37B reusable space plane vehicles built. OTV-1 made its debut flight in April, 2010. OTV-2 made its maiden flight

a year later in March, 2011, and stayed in space for nearly 15 months.