The Andromeda galaxy, also known as M31, is a spiral galaxy about 2.5 million light years away from the Milky Way. It gets its name because it's found in Andromeda, a northern hemisphere constellation. A naked-eye object... More »

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The Andromeda galaxy is 2.54 million light years away from Earth, which means that it takes 2.54 million years for light from Earth to reach it. This distance is an accepted average of the results of separate studies of ... More »

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Astronomer Edwin Hubble discovered the Andromeda galaxy, according to the Space Telescope Science Institute. Hubble discovered the galaxy in 1923, after studying the Andromeda nebula. This also settled the debate among a... More »

Astronomer Edwin Hubble discovered the Andromeda galaxy, according to the Space Telescope Science Institute. Hubble discovered the galaxy in 1923, after studying the Andromeda nebula. This also settled the debate among a... More »

The Andromeda galaxy is 2.54 million light years away from Earth, which means that it takes 2.54 million years for light from Earth to reach it. This distance is an accepted average of the results of separate studies of ... More »

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According to the theoretical Drake Equation of 1961, mathematical calculations designed to quantify the odds of alien life indicate that there are potentially 10,000 intelligent civilizations in the Milky Way. Dr. Frank ... More »

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Proxima Centauri is the closest star to the solar system, located just over 4 light years from Earth. Proxima Centauri, along with its stellar companions Alpha Centauri A and B, form a trinary star system. More »