Massive primordial galaxies found in ‘halo’ of dark matter

The Aurora Australis, or Southern Lights

Observations of two galaxies made with the National Science Foundation-funded Atacama Large Millimeter/submillimeter Array (ALMA) radio telescope suggest that large galaxies formed faster than scientists had previously thought.

The two galaxies, first discovered by the South Pole Telescope at NSF’s Amundsen-Scott South Pole Station in Antarctica, were massive and star-filled at a time when the cosmos was less than a billion years old.

The observation came as a surprise,

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This is an NSF News item.