This week's Hubble image shows the small but intriguing galaxy UGC 7983, thought to be similar to some of the earliest galaxies that existed in the universe.
This week’s image from the Hubble Space Telescope shows a small but intriguing galaxy called UGC 7983, which is thought to be similar to some of the earliest galaxies that existed in the universe. Located 30 million light-years away in the constellation of Virgo, it looks like a hazy fuzz and is small enough to be considered a dwarf galaxy. Its unusual shape also make it a specific type called a dwarf irregular galaxy.
Astronomers are interested in studying dwarf galaxies like this one to learn about the formation of galaxies in the early universe. Researchers know that galaxies that formed when the universe was young, in the first few billion years after the Big Bang, were quite different from most of the galaxies we see today. And we know that dwarf irregular galaxies tend to have large amounts of dust and gas in them, making them hotbeds of star formation.
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