Photos: Thursday’s Atlas 5 rollout to launch pad

A shoebox-sized satellite conceived and funded by members of the Planetary Society, an advocacy organization co-founded by Carl Sagan, is fastened to an Atlas 5 rocket for launch Wednesday to test one of the late celebrity-astronomer’s futuristic concepts for exploring the cosmos.

Giving every opportunity for the storm clouds to blow clear after a four-hour hold, the United Launch Alliance Delta 4-Heavy rocket counts down Thursday afternoon at Cape Canaveral until the clocks had to be halted for the day.

A pair of ViaSat and Eutelsat communications satellites — one to broadcast unparalleled high-speed Internet from space, and another to connect the Asia-Pacific — streaked into space Thursday from French Guiana atop an Ariane 5 rocket, setting records for the heaviest and most valuable commercial payload ever put into orbit.