Milky Way

Spiral galaxy containing our Solar System

Milky Way (Under CC License)

The Milky Way is the galaxy that contains the Solar System, with the name describing the galaxy's appearance from Earth: a hazy band of light seen in the night sky formed from stars that cannot be individually distinguished by the naked eye. The term Milky Way is a translation of the Latin via lactea, from the Greek γαλαξίας κύκλος. From Earth, the Milky Way appears as a band because its disk-shaped structure is viewed from its outer rim. Galileo Galilei first resolved the band of light into individual stars with his telescope in 1610. Until the early 1920s, most astronomers thought that the Milky Way contained all the stars in the Universe. Following the 1920 Great Debate between the astronomers Harlow Shapley and Heber Curtis, observations by Edwin Hubble showed that the Milky Way is just one of many galaxies.

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Unseeable, but inescapable: black holes already rank among the more sinister phenomena out in the cosmos. So it may come as disconcerting news that the..
1 week ago • WorldNews

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A mysterious black hole—that has yet to be discovered—in one of our galaxy's spiral arms appears to have hurled a star across the Milky Way, an international..
1 week ago • WorldNews

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