For decades physicists have been puzzling over the enigma of dark matter. We think it makes up 85% of the matter in the universe, but the mysterious substance cannot be seen or detected, and we know about it mainly through observations of the gravitational effects it has on other things. But no...

Source: [Guardian Science](https://www.theguardian.com/science/audio/2026/sep/10/dark-matter-science-biggest-discovery-podcast)

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