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Podcast: StarDate
Episode: New Strategies
Description: Scientists have been searching for dark matter for decades. They haven’t found it – every experiment they’ve devised has come up empty. But they haven’t given up. Among other ideas, they’re thinking about ways to use moons, planets, and stars as detectors.
Dark matter appears to make up about 85 percent of all the matter in the universe. We know it’s there because its gravity pulls on the visible stars and galaxies around it.
Dark matter may consist of a type of particle that almost never interacts with normal matter. But it should inter...