The Journal of Space Commerce

The Journal of Space Commerce

ESA Launches HydroGNSS Mission

Twin Satellites Will ‘Scout’ for Water

Tom Patton's avatar
Tom Patton
Dec 08, 2025
∙ Paid

A pair of satellites were launched on the recent Transporter-15 mission that will give ESA the ability to better understand the global availability of water.

“We now look forward to seeing how HydroGNSS will employ GNSS reflectometry to deliver valuable insights into key hydrological variables that shape Earth’s water cycle.”
Simonetta Cheli, ESA

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