Live Chat: Unraveling the Mysteries of Dark Matter

See below for the chat box. Join us each Thursday at 3 p.m. EDT for a live conversation with leading scientists and expert reporters.
Today's Topic

For decades, scientists have thought that some sort of mysterious and invisible “dark matter” must provide the gravity that holds the galaxies together. However, researchers still don’t know what dark matter is, as they’ve never seen any sign of it other than its gravity. That may soon change. If particle physicists’ favorite theories are correct, then within the next few years, researchers may detect particles of the weird stuff with ultrasensitive detectors deep underground, satellites peering to the heavens, or the world’s biggest atom smasher. Are researchers close to solving one of the biggest mysteries in the universe?

Join us for a live chat at 3 p.m. EDT on Thursday, 5 May, on this page. You can leave your questions in the comment box below before the chat starts.

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Today's Guest

Rocky Kolb

Rafael F. Lang

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