• Most galaxies rotate at a speed that should cause them to fly apart if all that holds their visible matter together is gravity as physicists understand it.

    ECONOMIST: Spotting dark matter, at last

  • Amano noted that Iran has recently begun installing IR-2m centrifuges at its fuel enrichment plant at Natanz, and that those high-speed devices that rotate to enrich uranium are more advanced than the previously-installed centrifuges.

    CNN: Nuclear watchdog agency says Iran not cooperating

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