A century ago, Edwin Hubble revolutionized our understanding of the universe by proving that the Milky Way is just one of many galaxies in an ever-expanding cosmos. This breakthrough led to the ...
That evening, the Moon will pass quite close to the Pleiades star cluster. Also known as the Seven Sisters and Messier 45, this group of stars is easy to see with your naked eyes. Still ...
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One large Milky Way galaxy or many galaxies? 100 years ago, Edwin Hubble settled astronomy's 'Great Debate'Hubble's work opened the door to the study of ... in Messier's catalog—while others were star clusters such as the Pleiades, or M45. A third category—nebulae with spiral structure ...
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One large Milky Way galaxy or many galaxies? 100 years ago, a young Edwin Hubble settled astronomy’s ‘Great Debate’Hubble’s work opened the door to the study ... in Messier’s catalog – while others were star clusters such as the Pleiades, or M45. A third category – nebulae with spiral structure ...
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