A Blue Dwarf

No, not a Smurf, a galaxy, ESO 338-4. It’s a blue dwarf galaxy about 100 million light-years away in the constellation Corona Australis. Blue compact dwarf galaxies have intensely blue star-forming regions twithin their cores. The young, blue stars in the cloud of dust and gas ate the center of this image were formed as a result of a merger between a wandering galaxy and ESO 388-4. That interaction disrupted the clouds of gas and dust surrounding ESO 338-4 which caused the rapid formation of a new population of stars.

Image Credit: ESA / NASA

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