Falcon Heavy hot fire as seen from Kennedy Space Center Press Site

Armed with capital and an anchor customer for a trailblazing satellite life extension service, Orbital ATK has signed a contract to loft its first robotic servicing tug aboard a Russian Proton rocket in 2018 on a shared launch with a Eutelsat communications satellite.

Joining other established commercial geostationary satellite operators looking at fleets of communications platforms in low Earth orbit, Eutelsat announced Thursday it will launch a small testbed next year as a precursor to a potential network of data relay craft flying a few hundred miles above the planet.

A rocket booster SpaceX used to launch a planet-hunting NASA observatory two months ago fired again Saturday at Cape Canaveral, clearing a major pre-flight checkout before blastoff June 29 with a space station supply ship.