Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994mercu..23e...7b&link_type=abstract
Mercury, Vol. 23, no. 5, p.7
Astronomy and Astrophysics
Astronomy
Scientific paper
Early in this century, astronomers debated whether spiral nebulae were
luminous pieces of our own galaxy or independent galaxies, Kant's
"island universes." Harlow Shapley championed the former explanation.
Although he turned out to be wrong, his arguments illustrate how science
tests it ideas.
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