Ancient rocks tell us plenty about the history of the Earth, but they also may harbour hints of billion-year-old encounters with mysterious dark matter, scientists say.
Without dark matter — shown here in blue — the Abell galaxy cluster wouldn't have the gravity to hold itself together.One main dark matter particle candidate is the hypothetical weakly interacting massive particles, or WIMPs. They don't emit light and rarely bump into other particles.
One of the oldest and best-known is the dark matter project , deep in a mountain, at Italy's Gran Sasso National Laboratory.that fluctuated as we orbited the sun, which they said was evidence that dark matter was in"clumpy" in our solar system, and not consistently spread throughout., and more than 20 years on, no-one's confirmed the DAMA group's findings — or any other direct detection claim, for that matter.
And given enough time, a mineral might accumulate enough of these defects, which could then be imaged by pelting the crystal with X-rays.
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