Florilegius
EN_00958297_0606
As astronomers began to explore the physical nature of comets, they found that meteors came from dust left by comets. Major meteor showers such as the Leonids, seen here as they appeared on November 12, 1799, occurred as Earth plowed through a river of comet dust. In 1833 and in 1866 additional recurrences of a Leonid meteor 'storm' helped lead to the discovery of the parent comet from which meteors came. (From the Midnight Sky, by Edwin Dunkin, 1869).
2011-03-24
EAST NEWS
Science Source
New York Public Library Picture
BQ7368
3,7MB
23cm x 34cm przy 300dpi
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