The Youngest Known Example of Two Stars Merged Into One

The Youngest Known Example of Two Stars Merged Into One
AP Photo, File

In 2004, scientists with NASA’s space-based Galaxy Evolution Explorer (GALEX) spotted an object unlike any they’d seen before in our Milky Way galaxy: a large, faint blob of gas with a star at its center. Though it doesn’t actually emit light visible to the human eye, GALEX captured the blob in ultraviolet (UV) light and thus appeared blue in the images; subsequent observations also revealed a thick ring structure within it.

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