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New theory suggests that cosmic bubbles may have produced dark matter



Bubbles in our early universe may have resulted in the present abundance of dark matter, an elusive substance that pulls stars, but does not emit light, a study new shows.

Theory, described on October 9 in the journal Physical Evaluation Letters, possibly explaining exactly how dark matter condenses out of the fiery soup of the early universe. Since the astronomer Fritz Zwicky first proposed the existence of dark matter by 1933, tons of observational evidence has shown that something is lurking in the dark, invisible to our eyes and even the latest scientific tools. Dark matter leaves its fingerprints on the gravitational pull it exerts on the visible stars and galaxies observed by astronomers. The magnitude of that drag allows scientists to estimate what percentage of the universe is made up of dark matter; Current estimates suggest this dark matter makes up 80% of the mass of the universe.


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