The Space & Beyond Blog

The Andromeda Milky Way Collision

4.5 billion years into the future, the Milky Way will collide with Andromeda.

A picture of the andromeda galaxy.

At approximately 2.5 million light-years away, the Andromeda galaxy, or M31, is our Milky Way’s largest galactic neighbor. Source: NASA/JPL-Caltech

An illustration of the Andromeda Milky Way collision. This illustration shows the Milky Way colliding with Andromeda 3.75 billion years from now.

This illustration shows a stage in the predicted merger between the Milky Way galaxy Andromeda galaxy. In this image, representing Earth’s night sky in 3.75 billion years, Andromeda (left) fills the field of view and begins to distort the Milky Way with tidal pull. Source:  NASA; ESA; Z. Levay and R. van der Marel, STScI; T. Hallas; and A. Mellinger

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An image of the Milky Way galaxy.

The Milky Way, pictured above, has a spiral shape. At the center of the spiral, a lot of energy and vivid flares are generated. Source: NASA


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