🛬 Satellite navigation on holidays: Flying somewhere for your summer holidays? Did you know that EGNOS helps guide safe aeroplane landings in over 500 airports and helipads across Europe? Find out more about EGNOS 🔗 egnos-user-support.essp-sas.eu 📷: GSA

🛰️Two new Galileo satellites enter service Two new satellites, SAT 33 and SAT 34, have now officially joined Europe’s Galileo satellite navigation constellation, strengthening its capabilities, resilience and autonomy. www.esa.int/Applications...

The Earth emoji is doing its best 🌍 🛰️ But let's not forget the satellites orbiting overhead, powering positioning, navigation and timing, and so much more.

What has ESA been up to these past months? Propelling people around the Moon, making discoveries about comet 3I/ATLAS and sending a mission to the Sun. 📍 Closer to Earth, our Celeste satellites broadcast their first navigation signals in April. esamultimedia.esa.int/multimedia/p...

🛰️Revealing OpSTAR's patch! OpSTAR is our bright new demonstrator mission, aimed at showcasing how optical technologies can reshape the architecture of satellite navigation, enable greater accuracy and strengthen resilience. Can you spot all the hidden elements? www.esa.int/Applications...

🛰️ Galileo's second generation will feature intersatellite links, which will allow the satellites to ‘talk’ to one another in orbit. Read more about the test campaign to get the intersatellite links ready for life in space here: 🔗 @esa.int @euspa.bsky.social @ec.europa.eu

Conversations in the sky: Galileo’s intersatellite links tested

The second generation of Galileo, Europe’s satellite navigation constellation, is being built. These satellites will feature reconfigurable payloads, provide more robust and reliable positioning, navi...

esa.int

🛰️ We're putting the pieces together for Galileo second generation. Here, the electric propulsion system is being lowered onto the satellite platform of the Airbus Defence and Space satellite family. 🔗 www.esa.int/ESA_Multimed... @esa.int @euspa.bsky.social @ec.europa.eu

The global geodesy supply chain underpins modern satellite functioning by providing the reference data satellites need to know where they are and where to point. Read about how ESA is strengthening the global geodesy supply chain 👉 www.esa.int/Applications... 📸: UN-GCCE

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 happened this month at European Space Agency (April 2026)

YouTube video by European Space Agency, ESA

youtube.com

🧭 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/

European Space Agency@esa.int · 4mo ago

🚀 #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

🚀 #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.

Rocket Lab@rocketlabcorp.com · 4mo ago

Weather conditions over LC-1 violate cloud and lightning commit criteria for launch, so we’re standing down from today’s mission. A weather system is passing through the region in the coming days, so our next target launch date will be set once that passes. Back soon under clearer skies.

🚀 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...