Long before we had the atomic theory of matter, scientists knew the air was real, even though it was invisible. This was because we could see its action as the wind caressed the leaves in trees.
Likewise we see the influence of another invisible force in the wider cosmos in the movement of stars within galaxies. But we don’t yet know what this mysterious “dark matter” is made of.
Now a new generation of detectors – including one we’re building in a gold mine in Victoria – is giving us hope that we might finally shed some light on dark matter.
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