ESA - Gaia - Archive

About ESA

The European Space Agency (ESA) is Europe’s gateway to space. Its mission is to shape the development of Europe’s space capability and ensure that investment in space continues to deliver benefits to the citizens of Europe and the world.

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Latest

Science & Exploration

Titan forecast: partly cloudy with a chance of methane show…

14/05/2025 310 views 4 likes

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Just a week after its launch, ESA’s Biomass 12-metre-diameter antenna is now fully deployed.

Week in images: 05-09 May 2025

Discover our week through the lens

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Press Release N° 24–2024

Science & Exploration

ESA and NASA join forces to land Europe’s rover on Mars

ESA and NASA are consolidating their cooperation on the ExoMars Rosalind Franklin mission with an agreement that ensures important US contributions, such as the launch service, elements of the propulsion system needed for landing on Mars and heater units for the Rosalind Franklin rover.

16/05/2024 4716 views

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Space in Member States

Find out more about space activities in our 23 Member States, and understand how ESA works together with their national agencies, institutions and organisations.

Science & Exploration

Exploring our Solar System and unlocking the secrets of the Universe

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Programmes

Space Science Human and Robotic Exploration

Astronauts

Sophie Adenot

Pablo Álvarez Fernández

Rosemary Coogan

Samantha Cristoforetti

Alexander Gerst

Raphaël Liégeois

Matthias Maurer

Andreas Mogensen

Luca Parmitano

Thomas Pesquet

Marco Sieber

Missions

Juice Euclid Webb Solar Orbiter BepiColombo Gaia ExoMars Cheops Exoplanet missions More missions

Activities

International Space Station Orion service module Gateway Concordia Caves & Pangaea Benefits

Space science from home: resources for children and adults

A selection of activities to pass time and learn more about space science

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Space Safety

Protecting life and infrastructure on Earth and in orbit

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About safety and security

Protecting our Pale Blue Dot The story so far Space Safety at ESA

Asteroids

Asteroids and Planetary Defence Asteroid danger explained Flyeye telescope: asteroid detection Hera mission: asteroid deflection Near-Earth Object Coordination Centre

Space junk

About space debris Space debris by the numbers Space Environment Report In space refuelling, refurbishing and removing

Safety from space

Clean Space ecodesign Zero Debris Technologies Space for Earth Supporting Sustainable Development

Space weather

Solar Hazards ESA Vigil: providing solar warning Space Weather Warning Network

Latest

Space Safety

Space Safety Programme at 2025 Ministerial Council

08/05/2025 255 views 0 likes

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Space Safety

James Webb Space Telescope will study asteroid 2024 YR4

Webb will provide a more accurate estimate of the asteroid's size

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Applications

Using space to benefit citizens and meet future challenges on Earth

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Observing the Earth

Observing the Earth Future EO Copernicus Meteorology Space for our climate Satellite missions

Connectivity

Connectivity and Secure Communications ARTES Moonlight Civil security from space

Satellite navigation

Satellite navigation Galileo EGNOS NAVISP Genesis LEO-PNT

Commercialisation

ESA Commercialisation Gateway Open Space Innovation Platform Business Incubation ESA Space Solutions

Latest

Applications

Thank you for your service, Galileo GSAT0104

13/05/2025 2230 views 38 likes

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Press Release N° 1–2024

Applications

Media invitation: Last chance to see the EarthCARE cloud and aerosol satellite in Europe

On 1 February, media representatives have the unique opportunity of seeing the EarthCARE satellite up close in the cleanroom at Airbus facilities in Friedrichshafen, Germany, before the spacecraft is packed up and shipped to California, USA, for a launch scheduled in May.

11/01/2024 4193 views

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Applications

Register for Φ-week

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Enabling & Support

Making space accessible and developing the technologies for the future

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Building missions

Space Engineering and Technology Test centre Laboratories Concurrent Design Facility Preparing for the future Shaping the Future Discovery and Preparation Advanced Concepts Team