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Which galaxy is the nearest large spiral galaxy to the Milky Way?
SpaceGalaxies
Quick Answer
The nearest large spiral galaxy to the Milky Way is Andromeda, also known as M31. It is about 2.5 million light-years away.
The Full Story
Andromeda is the closest large spiral galaxy to our own and one of the most studied objects in the night sky. It lies about 2.5 million light-years from Earth and is similar in structure to the Milky Way, though somewhat larger in mass. Because it is so close by galactic standards, astronomers use it to study spiral structure, star formation, and galaxy evolution. Andromeda and the Milky Way are expected to merge in roughly 4 to 5 billion years.
Key Facts
1.Distance: about 2.5 million light-years
2.Also called M31
3.Milky Way-Andromeda merger expected in about 4-5 billion years
YouTube Angle
Suggested video title for this topic:
"Our nearest big galactic neighbor is on a slow-motion collision course with the Milky Way."