The forecast of stormy weather prevented rollback of the mobile service gantry and the continuation of the countdown at Cape Canaveral on Wednesday for the United Launch Alliance Delta 4 rocket.

Ten small high-resolution observation satellites for Satellogic — an Argentine company in the midst of deploying a fleet of Earth-imaging spacecraft — successfully launched Friday on a Chinese Long March 6 rocket.

Rocket-builder United Launch Alliance unveiled a first-of-a-kind website Wednesday that shows potential customers exactly what it will cost to buy an Atlas 5 booster, along with expected savings based on the rocket’s demonstrated reliability, ULA’s on-time launch record and the company’s sophisticated guidance system.