Merging galaxies galore

What exactly happens when two large galaxies collide with one another? Any image of a galaxy collision captures only one instant in a collision process lasting a billion-years ? a gradual waltz of stars and gas choreographed by gravity. This visualisation of a galaxy collision created by a supercomputer simulation shows the entire collision sequence, and compares the different stages of the collision with different interacting galaxy pairs observed by the NASA/ESA Hubble Space Telescope. With this combination of research simulations and high resolution observations, these titanic crashes can be better understood.Crossfades between different merging galaxies from a collection of fifty nine new images of colliding galaxies ? the largest collection of Hubble images ever released together. As this astonishing Hubble atlas of interacting galaxies illustrates, galaxy collisions produce a remarkable variety of intricate structures.

NASA, ESA, and F. Summers (STScI)

About the Video

Release date:24 April 2008, 15:00
Related releases:heic0810
Duration:01 m 42 s
Frame rate:30 fps

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