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Jul 08, 2020

Alpha Centauri ( α Cen) is the closest star system to Earth's Solar System at about 4.37 light-years or 25,600,000,000,000 miles (40,130,000,000,000 km) away from from the Sun. The flight to Alpha Centauri with the speed of Apollo 11 will take us over 100,000 years to complete.

alpha centauri size alpha centauri size compared to sun nearest star nearest star to earth nearest star to our solar system proxima centauri size star size comparison 2020 sun compared to alpha centauri sun compared to alpha centauri a sun compared to alpha centauri b sun compared to alpha centauri c sun compared to other stars sun compared to proxima centauri sun size comparison sun vs alpha centauri sun vs proxima centauri universe size comparison 2020

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Dec 14, 2019

Comparison between the Speed of light around Earth (7.5 laps/sec) Earth to Moon, Earth to Mars. And the speed of the fastest man-made spacecraft 724,205 km/h (0.067% the speed of light)

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