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A team of astronomers used a cluster of galaxies like a magnifying glass to discover two never-before-seen distant galaxies. Pandora's Cluster warps the fabric of space-time, creating a visual effect that magnifies light behind it. The two newly uncovered galaxies are two of the most distant galaxies ever detected. AdvertisementScientists used a galaxy cluster that warps the fabric of space-time like a magnifying glass, helping them discover two of the most distant galaxies ever observed. These two distant galaxies are also special because of their unique shape.
Persons: , James Webb, Joel Leja, Leja Organizations: Service, Penn State, Telescope
These galaxies, one of which appears to have a mass rivaling our Milky Way but 30 times more densely packed, seem to differ in fundamental ways from those populating the universe today. "The leading theory is that an ocean of dark matter filled the early universe after the Big Bang," Labbe said. "This dark matter - we don't know what it is actually is - started out really smooth, with only the tiniest of ripples. These ripples grew over time due to gravity and eventually the dark matter started to collect in concentrated clumps, dragging hydrogen gas along for the ride. "Their explosion set off the chain of events that formed subsequent generations of stars," Labbe said.
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