Photos: Atlas 5 rollout

Four magnetic explosion probes in a towering stack atop an Atlas 5 rocket rode a fountain of flame off the launch pad and into Earth orbit Thursday night for a $1.1 billion NASA science investigation into a universal force of nature.

The Atlas 5 rocket emerges from the Vertical Integration Facility for rollout to Complex 41 at Cape Canaveral in preparation to launch Morelos 3 on Friday at 6:08 a.m. EDT.

Scientists say the touch and go landing by NASA’s OSIRIS-REx spacecraft on an asteroid last month revealed fresh insights into the structure of loose rocks that may cover the surfaces of many small planetary bodies — material that is more akin to a playground ball pit than solid bedrock.