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New Hints That Dark Matter Exists

The universe we can see — stars, planets, galaxies — is only 5 percent of what's out there. The rest, so-called dark matter and dark energy, — can't be observed, so scientists have developed instruments to detect the sub-atomic particles thought to be responsible for their presence. Now some new evidence from the International Space Station hints at their existence. An extremely sensitive instrument, attached to the space station since 2011, has...

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