Ten commercial Earth-imaging satellites are mounted on top of a Rocket Lab Electron launcher for liftoff Wednesday from New Zealand.

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.

A new launch date has been established — June 9 — for the Delta 4-Heavy rocket to carry a classified satellite into space for U.S. national security needs.