Photos: Delta 4-Heavy launch as seen from press site

The second Falcon Heavy fires its first stage engines as part of a routine pre-flight test for the upcoming launch of the Arabsat 6A communications satellite.

This gallery of photos shows the rollout Tuesday of United Launch Alliance’s Atlas 5 rocket and Boeing’s Starliner crew capsule to pad 41 at Cape Canaveral, plus additional views of the 172-foot-tall launcher standing next to the crew access tower Wednesday as teams prepared for a countdown rehearsal.

Taking another step toward flying space tourists to the edge of space, Jeff Bezos’s space company Blue Origin again flew its New Shepard suborbital booster Thursday with a package of microgravity research experiments.