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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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 topicOn ESA's 31st parabolic flight campaign, students from the University of Lund, Sweden, recorded the motion of four fish under various lighting conditions - from above, from below, from the side and without any light.
Under microgravity the fish tended to align themselves so that the light came from above. When there was no light, the fish used pressure sensors on their body to align themselves with respect to rods installed in the aquarium.
(Photo: ESA)