NASAのインスタグラム(nasa) - 3月9日 08時04分

This galaxy – composed of a busy cloud of bright stars – has an irregular and chaotic appearance, as seen here by our Hubble Space Telescope (@NASAHubble). Roughly 25 million light-years away, this galaxy contains bright pockets that indicate bursts of new star formation.

It is thought that irregular galaxies may once have been spirals or ellipticals, but became distorted over time through external gravitational forces during interactions or mergers with other galaxies. Dwarf irregulars in particular are important to our overall understanding of galactic evolution, as they are thought to be similar to the first galaxies that formed in the universe.

Image credit: ESA/Hubble & NASA, Acknowledgements: Judy Schmidt
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