The U.S. Space Force has successfully launched a billion-dollar rocket into space to that will enable the U.S. military to better detect missile launches.
It was launched on Tuesday from Cape Canaveral in Florida on an Atlas 5 rocket.
This satellite is the fifth in a series of infrared system satellites that will replace an older constellation of defense satellites.
They can detect heat from missile exhaust around the world.
The first one was launched in 2011, and the next one is due to launch next month