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The Milky Way [c] is the galaxy that includes 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 in other arms of the galaxy, which are so far away that they cannot be individually distinguished by the naked eye.
The Green Hills of Earth" is a science fiction short story by American writer Robert A. Heinlein. One of his Future History stories, the short story originally appeared in The Saturday Evening Post (February 8, 1947), and it was collected in The Green Hills of Earth (and subsequently in The Past Through Tomorrow ).
Knowledge of the location of Earth has been shaped by 400 years of telescopic observations, and has expanded radically since the start of the 20th century. Initially, Earth was believed to be the center of the Universe , which consisted only of those planets visible with the naked eye and an outlying sphere of fixed stars . [ 1 ]
The "Astronomia" (Ancient Greek: Ἀστρονομία, "Astronomy") or "Astrologia" (Ἀστρολογία, also "Astronomy") is a fragmentary Ancient Greek hexameter poem that was attributed to Hesiod during antiquity. As the title of the poem suggests, it was astronomical in focus, dealing with the stars. [1]
An accurate determination of the distance to the Galactic Center as established from variable stars (e.g. RR Lyrae variables) or standard candles (e.g. red-clump stars) is hindered by numerous effects, which include: an ambiguous reddening law; a bias for smaller values of the distance to the Galactic Center because of a preferential sampling ...
The clouds are an obstruction to millions of the galaxy's stars detected at visible wavelengths, which compose a bright hazy band appearing 30° wide and arching through the night sky. The clouds within our radial sector of the galaxy span about 800–1,000 parsecs (2,600–3,300 ly ) from Earth. [ 1 ]
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According to Ott and Broman, Aniara is an effort to "[mediate] between science and poetry, between the wish to understand and the difficulty to comprehend". [10] Martinson translates scientific imagery into the poem: for example, the "curved space" from Albert Einstein's general theory of relativity is likely an inspiration for Martinson's description of the cosmos as "a bowl of glass ...