Thirty years ago, Europe set out to build an independent navigation system. “Finding Our Way: Inside the Galileo Project” goes behind the signal that guides us all. 📅 Save the date: 11.06.2026 🔗 www.youtube.com/watch?v=q2bL... @esa.int @euspa.bsky.social @ec.europa.eu @designdatagmbh.bsky.social

April was a busy month for @esa.int! 🛰️ We’re particularly proud of the Celeste IOD satellites, which broadcast their first navigation signals. Check out this moment and other highlights from April 👇 www.youtube.com/watch?v=50eD...

🧭 What's it like to attend a navigation conference? Last week, we were at the European Navigation Conference in Vienna, Austria. While there, we dived into the future of navigation with partners from industry, academia and government. Follow us through a day at the conference here ⬇️

🛰️ Good morning Celeste, we hear you loud and clear! Last night, ESA’s second Celeste satellite sent its first dual-frequency navigation message in the L- (🔴) and S-band (🔵) from low Earth orbit. Congratulations to the teams around Europe that connected in the early hours to make this happen!

🛰️ A European first! ESA’s Celeste broadcasts first navigation signal from low Earth orbit. Sent from Celeste IOD-1, the signal is the first dual-frequency navigation message in the L- and S-band, the first sent from a European satellite in low-Earth orbit. www.esa.int/Applications...

During #Artemis II's Moon flyby there were around 40 minutes without contact back to Earth📶 🌍️ @esa.int 's Moonlight aims to fill this gap by deploying a constellation of communication and navigation satellites around the Moon to never lose connection when most needed 🌑 @navigation.esa.int

Galileo signals reach all the way to the Moon! 🛰️🌙 Last year, a joint ASI and NASA mission determined its position on the Moon using Galileo and GPS satellites and tested Galileo's Emergency Warning Satellite Service on the Moon. 🔗 www.esa.int/Applications... 📸 @firefly-aerospace.bsky.social

#Artemis II is taking us closer to the Moon... but the surface awaits! 🌙 For future lunar missions, @esa.int 's Moonlight programme aims to power communications and navigation across the lunar surface 🛰️🧭 Find out more 👉 connectivity.esa.int/moonlight @navigation.esa.int

🚀 Did you miss our first Celeste launch? Watch the replay! Last Saturday, the first two satellites of our new satellite navigation in-orbit demonstration mission flew into space aboard Rocket Lab’s Electron rocket from the Māhia Launch Complex in New Zealand. www.esa.int/ESA_Multimed...

💫 ABSOLUTELY CELESTIAL! This Saturday, @rocketlabcorp.com took the first two Celeste satellites into orbit. They are alive and well. This is a major step forward in strengthening Europe's ambition for more resilient satellite navigation. www.esa.int/Applications... 📷 Rocket Lab, ESA–D. Ducros

Celeste is in orbit!🚀 ESA’s first two #Celeste demo satellites have successfully launched on RocketLab’s Electron from New Zealand, starting tests of a complementary #LEO layer for #Galileo to boost resilience and unlock new PNT services. www.esa.int/Newsroom/Pre...

Lift-off! The Electron rocket is blasting in the New Zealand sky. Separation is expected in about an hour. Go Celeste!

🔴 #LiveNow: join for our first #Celeste launch! watch.esa.int/Two/

🚀 #JoinUsLive this morning for the first Celeste launch! This morning, starting 9:53 CET, join us live for the inaugural launch of ESA’s Celeste LEO-PNT in-orbit demonstration mission, taking place aboard @rocketlabcorp.com’s Electron rocket from New Zealand. www.esa.int/Applications...

🚀 #WatchLive tomorrow for our first Celeste launch! The next launch attempt for @rocketlabcorp.com is 28 March at 9:14:GMT/10:14CET. More details here 👉https://www.esa.int/Applications/Satellite_navigation/Watch_live_First_Celeste_launch @navigation.esa.int @thalesaleniaspace.bsky.social

Rocket Lab has decided to postpone the launch of its Electron rocket carrying ESA's first two Celeste satellites. This is due to unfavourable weather conditions over the Māhia Launch Complex in New Zealand. We will keep you informed as soon as a next target launch date has been set.

🚀 Celeste: The rocket is out! The Electron rocket was rolled out at Rocket Lab’s Māhia Launch Complex. Waiting inside the rocket, the two Celeste spacecraft are ready for their journey to power next-generation satellite navigation technologies from low Earth orbit! www.esa.int/Applications...

🚀 Celeste: Countdown to Launch 1 On 25 March, the first two satellites of the Celeste in-orbit demonstration mission will lift off aboard @rocketlabcorp.com's Electron rocket and play a pioneering role in elevating the future of Europe’s satellite navigation capabilities. youtu.be/zFgJbFPkEfM

🚀 #JoinUsLive on 25 March for the first Celeste launch! On Wednesday morning, starting 9:53 CET, join us live for the inaugural launch of ESA’s Celeste LEO-PNT in-orbit demonstration mission, taking place aboard @rocketlabcorp.com’s Electron rocket from New Zealand. www.esa.int/Applications...

Where am I? I ask Galileo finds the way I am lost no more. #WorldPoetryDay

🟢 The ESA Celeste mission patch is packed with meaning, highlighting the mission's ambition. Can you find all the elements hidden in the design? 👀 www.esa.int/ESA_Multimed...

🛰️Next time the Celeste satellites see the Sun, they will be in space. The first two Celeste satellites have been placed inside @rocketlabcorp.com ‘s Electron rocket fairing ahead of their planned launch on 24 March. www.esa.int/Applications...

The two Celeste satellites have been integrated on the dispenser of the @rocketlabcorp.com’s Electron rocket. From this point onward, they will travel as single unit through the final steps of launch preparation. Follow the launch campaign here 👉 www.esa.int/Applications...

📏 Is Celeste ‘fit’ for flight? Yes, it is! The team performed a fit check, verifying that the satellites correctly mated with the launcher adapter that will secure them during ascent. www.esa.int/Applications...

A look back at 2025 for Europe's Spaceport in French Guiana: www.esa.int/Enabling_Sup...

🎵 Every good story needs a cool soundtrack! We have put together a playlist that the Celeste mission will (metaphorically) take with it into orbit. Can you connect all the dots? open.spotify.com/playlist/59g...

🚀 Watch the replay of the media briefing we held yesterday ahead of the first launch of the Celeste mission. www.esa.int/ESA_Multimed... @thalesaleniaspace.bsky.social | #gmv

🚀 Celeste is getting ready for flight! Following their arrival in New Zealand, the two Celeste satellites have been undergoing a series of pre‑launch testing and activities at @rocketlabcorp.com’s Māhia Launch Complex. Follow the launch campaign here 👉 www.esa.int/Applications...

🔴 #LiveNow: join the online media briefing for the first launch of Celeste on #ESAWebTV 🔗 watch.esa.int/two/

Did you know our navigation mission #Celeste is named after Galileo’s daughter, Maria Celeste? In honour of #InternationalWomensDay, as we prepare for Celeste's first launch, we’re reflecting on those who have encouraged us and passing that spark onto someone else.

#MediaInvitation: Journalists are invited to join the online media briefing for the first launch of Celeste. The launch is scheduled no earlier than 24 March aboard @rocketlabcorp.com’s rocket from New Zealand. Register now 👉 www.esa.int/Newsroom/Pre... @thalesaleniaspace.bsky.social #GMV

🥝 Kia ora Celeste! Welcome to New Zealand! The satellites landed in Auckland and were transferred to @rocketlabcorp.com’s Māhia Launch Complex, marking the official start of the launch campaign. Follow for updates 👉 www.esa.int/Applications... @thalesaleniaspace.bsky.social #GMV 📷 Rocket Lab

🛰️ We've found our way to BlueSky 📍 Follow us as we navigate the world of satellite navigation: Galileo, EGNOS, Celeste, NAVISP, FutureNAV and so much more!