3.2.9 Dark energy
Dark energy causes the expansion of the Universe to accelerate, but what is dark energy?

Transcript
Scientists are looking for dark energy! The Euclid mission aims to observe both dark matter and dark energy in the Universe.
For more information on the Euclid mission and The Open University’s involvement with this and other astronomy missions see e2v centre for electronic imaging [Tip: hold Ctrl and click a link to open it in a new tab. (Hide tip)] .