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Please enable JavaScript on your browser to best view this site. If they [the stars] are suns having the same nature as our sun, why do not these suns collectively outdistance our sun in brilliance? Why do they all together transmit so dim a light? When sunlight bursts into a sealed room through a hole made with a tiny pin point, it outshines the fixed stars at once. The difference is practically infinite. He knew what he was talking about.
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It uses mathematics , physics , and chemistry in order to explain their origin and evolution. Objects of interest include planets , moons , stars , nebulae , galaxies , and comets. Relevant phenomena include supernova explosions, gamma ray bursts , quasars , blazars , pulsars , and cosmic microwave background radiation. More generally, astronomy studies everything that originates outside Earth's atmosphere.
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I should have mentioned it more often, but with the near-demise of this here blog over the last three years, I never got around to it. Within this website and the magazine, you may find some affiliate links. These links help to keep the magazine free to read.
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A nuclear-pulse powered starship begins a historic voyage to some nearby stars similar to our sun sometime in the 21st century. The first target is Tau Ceti, 12 light-years distant and seen in this rendering just to the right of the craft's spherical living quarters. This article chronicles how an unusual star map has led to new investigations of specific nearby stars that might harbor Earth-like planets - and possibly advanced forms of life.
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