#hydrognss
We have a mission!

Both HydroGNSS satellites have sent their first signals 📡

HydroGNSS is a Scout mission under FutureEO: compact in size, but built to deliver big science insights into Earth’s water cycle💧

🔗 www.esa.int/Applications...
November 28, 2025 at 10:01 PM
🚀 #LaunchUpdate2: launch of @esaearth.esa.int's HydroGNSS satellite along with #IrideSpazio and #Iceye satellites has been rescheduled again, now for Wednesday, 26 November. Details for how to watch 👇
Watch: HydroGNSS, IRIDE and Greek mission satellites launch
Update 19 November: The launch is now targeted for 26 November. The European Space Agency’s HydroGNSS, a twin-satellite mission to gather data on Earth’s water cycle, is scheduled to launch on 26...
www.esa.int
November 19, 2025 at 9:33 PM
🚀 LIFTOFF! ESA's HydroGNSS along with #IrideSpazio and #iceye satellites for Greece are on their way to orbit on a SpaceX Falcon 9.
November 28, 2025 at 6:46 PM
🚀 #WatchLive: tomorrow sees the launch of @esaearth.esa.int's HydroGNSS satellite along with #IrideSpazio and #IceyeGlobal satellites on a SpaceX Falcon 9.

📺 Watch on #ESAwebTV on Wednesday, 19 November, live from 18:01 GMT/19:01 CET👇
Watch: HydroGNSS, IRIDE and Greek mission satellites launch
The European Space Agency’s HydroGNSS, a twin-satellite mission to gather data on Earth’s water cycle, is scheduled to launch on 19 November at 19:18 CET (10:18 Pacific Time). Live coverage of th...
www.esa.int
November 18, 2025 at 9:49 AM
🚀 #LaunchUpdate: the launch of @esaearth.esa.int's HydroGNSS satellite along with #IrideSpazio and #Iceye satellites on a SpaceX Falcon 9 has been rescheduled for 20 November.
📺 Watch live on Thursday from 18:01 GMT/19:01 CET 👇
Watch: HydroGNSS, IRIDE and Greek mission satellites launch
Update 18 November: The launch is now targeted for 20 November. The European Space Agency’s HydroGNSS, a twin-satellite mission to gather data on Earth’s water cycle, is scheduled to launch on 20...
www.esa.int
November 18, 2025 at 8:34 PM
🚀 It's launch day (again😉) for @esaearth.esa.int's HydroGNSS satellite along with #IrideSpazio and #Iceye satellites.

Tune in today, 28 November, from 18:01 GMT/19:01 CET, to watch the liftoff live on #ESAwebTV.

📺 watch.esa.int/two

🔗 www.esa.int/Applications...

@ukspaceagency.bsky.social
Watch: HydroGNSS, IRIDE and Greek mission satellites launch
Update 26 November: The launch is now targeted for 28 November. The European Space Agency’s HydroGNSS, a twin-satellite mission to gather data on Earth’s water cycle, is now scheduled to launch o...
www.esa.int
November 28, 2025 at 9:13 AM
With final tests complete, ESA's HydroGNSS mission is set for launch this month. Part of the FutureEO programme, this Scout mission will use GNSS reflectometry to measure climate variables to improve understanding of Earth’s water cycle 🧪🌏

www.esa.int/Applications... (pic: ESA/ATG medialab)
November 6, 2025 at 5:05 PM
🔴 LIVE NOW: Launch of ESA's HydroGNSS satellite. Watch now on #ESAwebTV2

👉 📺 watch.esa.int/two
November 28, 2025 at 6:30 PM
#LaunchUpdate today's launch of @esaearth.esa.int's HydroGNSS satellite was postponed. The next launch opportunity is this Friday, 28 November. Stay tuned.
🚀 It's launch day for @esaearth.esa.int's HydroGNSS satellite along with #IrideSpazio and #Iceye satellites.

Tune in today, 26 November, from 18:01 GMT/19:01 CET, to watch the liftoff live on #ESAwebTV.

📺 watch.esa.int

@ukspaceagency.bsky.social
November 26, 2025 at 6:22 PM
HydroGNSS data are now available to users worldwide.

Following commissioning, @esa.int's first Scout mission is now in full scientific operations, providing new observations of soil moisture, wetlands, flooding and vegetation to support water and climate research.

www.esa.int/Applications...
HydroGNSS data open for new insights into Earth’s water
The European Space Agency's two-satellite HydroGNSS Scout mission has completed commissioning and is now in full scientific operations.Following extensive testing and validation of the satellites, ins...
www.esa.int
July 31, 2026 at 12:29 PM
🚀 It's launch day for @esaearth.esa.int's HydroGNSS satellite along with #IrideSpazio and #Iceye satellites.

Tune in today, 26 November, from 18:01 GMT/19:01 CET, to watch the liftoff live on #ESAwebTV.

📺 watch.esa.int

@ukspaceagency.bsky.social
November 26, 2025 at 5:27 PM
#LaunchUpdate today's launch of our HydroGNSS satellite is slightly delayed. Tune in to the livestream starting at around 18:30 GMT/19:30 CET.

📺 watch.esa.int/two
November 28, 2025 at 4:41 PM
Lanciati dalla California otto satelliti della costellazione italiana IRIDE per l'osservazione della Terra, finanziata con fondi PNRR, e il satellite HydroGNSS dell' @esa.int
November 28, 2025 at 6:50 PM
Delivering on its mission!

Three months into its life in space, @esa.int ’s HydroGNSS is already hard at work. The mission tracks Earth’s water cycle by analysing navigation signals reflected off the planet’s surface.
Curious to see some examples?
🔗 www.esa.int/Applications...
March 13, 2026 at 8:47 AM
Lancement réussi hier soir pour HydroGNSS ! Félicitations à toutes les équipes impliquées !
We have a mission!

Both HydroGNSS satellites have sent their first signals 📡

HydroGNSS is a Scout mission under FutureEO: compact in size, but built to deliver big science insights into Earth’s water cycle💧

🔗 www.esa.int/Applications...
November 29, 2025 at 10:59 AM
Domani alle 19.18 italiane il lancio dalla California con SpaceX di nuovi satelliti della costellazione italiana IRIDE per l'osservazione della Terra, finanziata con fondi PNRR. Partirà anche il satellite ESA HydroGNSS
www.esa.int/Applications...
Watch: HydroGNSS, IRIDE and Greek mission satellites launch
Update 18 November: The launch is now targeted for 20 November. The European Space Agency’s HydroGNSS, a twin-satellite mission to gather data on Earth’s water cycle, is scheduled to launch on 20...
www.esa.int
November 19, 2025 at 10:46 AM
Lanciata ieri la missione HydroGNSS dell'ESA.
Alcune ore dopo, entrambi i satelliti hanno inviato i primi segnali.

www.esa.int/Space_in_Mem...
November 29, 2025 at 8:58 AM
Avec la mission européenne HydroGNSS, deux mini-satellites partent observer l’eau de la Terre

Dégel du permafrost, inondations, zones humides… Une mission spatiale aura pour but de suivre l’évolution du climat par le prisme de l’eau.
Avec la mission européenne HydroGNSS, deux mini-satellites partent observer l’eau de la Terre
Dégel du permafrost, inondations, zones humides… Une mission spatiale de l’Agence spatiale européenne, lancée ce lundi 10 novembre, aura pour but de suivre l’évolution du climat par le prisme de l’eau.
www.liberation.fr
November 9, 2025 at 10:33 PM
HydroGNSS launches TODAY 6.18pm UK, built by SSTL to measure our water cycle, land use, wetlands, permafrost & carbon storage, via reflected GPS signals.

The mission animation we made:
www.youtube.com/watch?v=yn68...

Insights on our technical setup:
e-nox.net/simulating-d...

#ESA #hydrognss #sstl
HydroGNSS satellites for SSTL
YouTube video by equinoxgraphics
www.youtube.com
November 26, 2025 at 9:42 AM
Mise à jour de la date de lancement de notre satellite d'observation de la Terre HydroGNSS 👇
November 20, 2025 at 10:03 AM
Les dades d'HydroGNSS ja estan disponibles de forma gratuïta per avançar en la comprensió dels impactes del canvi climàtic en el cicle de l'aigua de la Terra
https://www.esa.int/Applications/Observing_the_Earth/FutureEO/HydroGNSS/HydroGNSS_data_open_for_new_insights_into_Earth_s_water
September 17, 2026 at 4:26 AM
¡Cumpliendo su misión!

Tras tres meses en el espacio, HydroGNSS de @esa.int
ya está trabajando a pleno rendimiento. Realiza un seguimiento del ciclo del agua en la Tierra mediante el análisis de las señales de navegación reflejadas en la superficie del planeta.
¿Quieres ver algunos ejemplos?
Delivering on its mission!

Three months into its life in space, @esa.int ’s HydroGNSS is already hard at work. The mission tracks Earth’s water cycle by analysing navigation signals reflected off the planet’s surface.
Curious to see some examples?
🔗 www.esa.int/Applications...
March 13, 2026 at 9:50 AM
I'm writing some DEEP DIVES into our past projects, to show some of the clever technical things we do that are not obvious from the final product. First is this one looking at our animation of SSTL's HydroGNSS satellite, which measures reflected GPS signals:

e-nox.net/simulating-d...

#SpaceArt
January 30, 2025 at 3:31 PM