Learn languages naturally with fresh, real content!

tap to translate recording

Explore By Region

flag Two European twin satellites launched on a SpaceX rocket to study Earth’s water cycle using GPS signals, marking ESA’s first rapid, low-cost mission.

flag On November 28, 2025, two twin HydroGNSS satellites launched from Vandenberg Space Force Base aboard a SpaceX Falcon 9 rocket as part of the Transporter-15 rideshare mission. flag Developed by the European Space Agency with Surrey Satellite Technology Ltd, the satellites use GNSS reflectometry to study Earth’s water cycle by analyzing L-band signals reflected from GPS and Galileo systems. flag Orbiting 180 degrees apart, they measure soil moisture, snow depth, sea surface conditions, and freeze-thaw states, providing high-resolution data to improve climate and water resource monitoring. flag The mission, ESA’s first Scout project, operates under a €35 million budget with a rapid three-year development timeline. flag Both satellites confirmed in orbit and transmitting data, marking a successful launch and early operations phase. flag The flight also carried Italy’s IRIDE environmental satellites and Greece’s ICEYE radar satellites, supporting disaster management and environmental monitoring.

5 Articles