Space X launched two satellites on May 22 on a Falcon 9 rocket as part of the Gravity Recovery and Climate Experiment Follow-On (GRACE-FO), a collaboration between NASA and the German Research Centre for Geosciences to monitor climate changes.According to a report from Space.com, GRACE-FO tracks the movement of water and ice on and beneath the Earth’s surface, as well as changes in the planet’s mass and gravity field.This footage shows the launch and includes a description of the spacecraft’s role. Credit: NASA via Storyful