(RNS) — When you look into the night sky, the naked eye can only make out 2,500 to 3,000 stars, five planets and maybe one to three galaxies, and that’s assuming ideal atmospheric conditions ...
Photo: Andromeda nebula plate with Hubble's handwritten circle around the variable star he discovered In 1919 American astronomer Edwin Hubble began work at the Mount Wilson Observatory in ...
But 100 years ago, astronomer Edwin P. Hubble (1889-1953), working at the Mount Wilson Observatory in California, made a stunning discovery: He calculated that a spiral nebula called Andromeda was ...
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