

This image from NASA’s Hubble Space Telescope shows Messier 3, a densely packed cluster of stars whose origins may be a merger between globular clusters in the early universe.
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This image from NASA’s Hubble Space Telescope shows Messier 3, a densely packed cluster of stars whose origins may be a merger between globular clusters in the early universe.
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A newly discovered object may be a key to unlocking the true nature of a mysterious class of sources that astronomers have found in the early universe in recent years.
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