The Evolution of Dark Matter

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We don't know what dark matter is, but are there leading theories as to what it might be? I mean, the were, we're at a very interesting stage of this search. It's actually quite an exciting time for this whole field. Let's get on to dark energy. In some sense, kind of counterpoint to dark matter, this sort of repulsive energy pushing the universe apart.

Ian Sample speaks to the cosmologist Dr Andrew Pontzen about the European Space Agency’s Euclid mission, which hopes to uncover more about two of the universe’s most baffling components: dark energy and dark matter. Pontzen explains what the probe will be looking for and how its findings will contribute to our understanding of the structure and evolution of the cosmos. Help support our independent journalism at theguardian.com/sciencepod