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Astronomy terms


Edwin Powell Hubble (1889-1953)


Hubble's law — considered the first observational basis for the expansion of the universe.

300px-Observable Universe with Measurements 01

Concept of observable universe


Observable universe—depicted as a celestial sphere of the Universe that comprises all matter observed from Earth.

Ernst Mach 01

Ernst Mach (1838–1916) Austrian physicist and philosopher


Mach's Principle—states that all laws of physics are determined by the global distribution of matter.


Astronomy NewsEdit


Earliest galaxies in the Universe’s history spun like the Milky Way, 10 January, 2018, in ALMA's Scientific Papers

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