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This image was produced by the NASA/ESA Hubble Space Telescope
as it embarked upon compiling the first Hubble ultraviolet “atlas”, for
which the telescope targeted 50 nearby star-forming galaxies. A sample
spanning all kinds of different morphologies, masses, and structures.
Studying this sample can help us to piece together the star-formation
history of the Universe.
By exploring how massive stars form and evolve within such galaxies, astronomers can learn more about how, when, and where star formation occurs, how star clusters
change over time, and how the process of forming new stars is related
to the properties of both the host galaxy and the surrounding interstellar medium (the “stuff” that fills the space between individual stars).