Live coverage: Atlas 5 countdown and launch journal

The United Launch Alliance Atlas 5 rocket was transfered from its assembly building to the pad at Cape Canaveral’s Complex 41 today for Tuesday’s launch of a commercially-operated cargo ship to resupply the International Space Station.

Darting through low clouds, the US Air Force’s reusable X-37B spaceplane rode a United Launch Alliance Atlas 5 rocket into orbit Sunday, debuting upgrades to accommodate additional scientific experiments, a dishwasher-sized tech demo satellite, and classified military objectives.

Signaling strength in the international cooperation between the U.S. military and allied nations, a satellite funded by five countries will be launched by the Air Force on Saturday to codify a global communications deal.