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.
Find out more about space activities in our 23 Member States, and understand how ESA works together with their national agencies, institutions and organisations.
Exploring our Solar System and unlocking the secrets of the Universe
Go to topicProtecting life and infrastructure on Earth and in orbit
Go to topicUsing space to benefit citizens and meet future challenges on Earth
Go to topicMaking space accessible and developing the technologies for the future
Go to topicThank you for liking
You have already liked this page, you can only like it once!
The Mars Express trajectory and polar orbit.
Mars Express will remain in orbit around the Red
Planet for at least one martian year, 687 Earth days,
which is the nominal mission lifetime. During this
time, the point of the orbit closest to Mars
(pericentre) will move around to give the scientific
instruments coverage of the entire martian surface
at all kinds of viewing angles.