NASA Awards Launch Service Contract for TROPICS Mission to Study Storm Processes NASA has selected Astra Space Inc. to provide a launch service for the agency’s Time-Resolved Observations of Precipitation Structure and Storm Intensity with a Constellation of SmallSats (TROPICS) mission. http://www.nasa.gov/press-release/nasa-awards-launch-service-contract-for-tropics-mission-to-study-storm-processes