Watch live video of the Solar Orbiter launch pad at Cape Canaveral (members only)

The opening volley in the transformation of U.S. weather forecasting was mounted atop its ride to space today for the planned Nov. 19 launch that begins an $11 billion upgrade in the nation’s meteorology capability.

Commercial ziplines have been installed and tested at United Launch Alliance’s Atlas 5 rocket pad as the emergency escape system if astronauts and ground personnel need to evacuate the Crew Access Tower.

The NASA TV broadcast of the launch of an Atlas 5 rocket carrying the Orbital ATK Cygnus cargo ship bound for the International Space Station on March 22, 2016. (Membership Required)