In the Kennedy Space Center’s Press Site auditorium, NASA and industry leaders speak to members of the media during a mission science briefing for the agency’s Cyclone Global Navigation Satellite System, or CYGNSS, spacecraft. From left are: Dr. Chris Ruf, CYGNSS principal investigator, Department of Climate and Space Sciences and Engineering at the University of Michigan; and Aaron Ridley, CYGNSS constellation scientist in the Climate and Space Department at the University of Michigan in Ann Arbor, Michigan. The eight CYGNSS satellites will make frequent and accurate measurements of ocean surface winds throughout the life cycle of tropical storms and hurricanes. The data will help scientists probe key air-sea interaction processes that take place near the core of storms, which are rapidly changing and play a crucial role in the beginning and intensification of hurricanes.