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Milky Way
Main article: Milky Way
Galactic Centerof the Milky
Milky Way Main article: Milky Way Galactic Centerof the Milky Way The Greekphilosopher Democritus(450–370 BC) proposed that the bright band on the n...
Milky Way Main article: Milky Way Galactic Centerof the Milky Way The Greekphilosopher Democritus(450–370 BC) proposed that the bright band on the n...
Modern researchIn 1944, Hendrik van de Hulstpredicted
Modern researchIn 1944, Hendrik van de Hulstpredicted microwaveradiation at a wavelength of 21 cmresulting from interstellar atomic hydrogengas; [ 44 ...
Modern researchIn 1944, Hendrik van de Hulstpredicted microwaveradiation at a wavelength of 21 cmresulting from interstellar atomic hydrogengas; [ 44 ...
Distinction from other nebulae
Sketch of Messier 51by Lord
Distinction from other nebulae Sketch of Messier 51by Lord Rossein 1845, later known as the Whirlpool Galaxy In the 10th century, the Persian astronom...
Distinction from other nebulae Sketch of Messier 51by Lord Rossein 1845, later known as the Whirlpool Galaxy In the 10th century, the Persian astronom...
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