Photos: Atlas 5 rocket aims for International Space Station

For the final time, a SpaceX Dragon cargo capsule was released from the International Space Station’s robotic arm Tuesday and splashed down hours later in Pacific Ocean southwest of Los Angeles. Beginning later this year, SpaceX will fly upgraded Dragon freighters that will dock automatically with the space station and parachute into the Atlantic Ocean east of Florida.

United Launch Alliance crews at Cape Canaveral have topped off an Atlas 5 rocket for liftoff Monday with the U.S. military’s next infrared sentinel to join a satellite fleet designed detect missile launches around the world.

After years of delays, the core stage for NASA’s first Space Launch System moon rocket rolled out of its New Orleans factory Wednesday, heading for a NASA site in Mississippi for a test-firing before engineers hope to ship the rocket to its Florida launch base by this fall.