This video shows a test deployment of Europa Clipper’s very high frequency (VHF) radar antenna. In its stowed configuration for launch, the devices will be about the size of a small lunchbox. In the weeks after launch, the VHF antennas will deploy to their operational configuration, of 8.5 feet (2.6 meters) long. This is a prototype. The flight version is scheduled to be built in 2021. Credit: NASA/JPL-Caltech