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.

The world’s population can now make full use of the latest Global Positioning System satellite launched from Cape Canaveral last month.

A powerful Russian Proton booster launched from Kazakhstan at 0931:42 GMT (5:31:42 a.m. EDT) Monday with the first part of a multibillion-dollar Mars mission led by the European Space Agency. An upper stage engine fired four times over 10 hours to send the Mars orbiter and lander away from Earth.