How Do Galaxies Grow?

Composite colour-image of the brightest galaxies in four groups located about 4 billion light-years away. The galaxies are ordered in increasing stellar mass, i.e. a rough time sequence. The brightest galaxies in group 1 and 2 both have obvious bright, gravitationally bound companions (see the crosses in this image).

Credit:

ESO

About the Image

Id:eso0824c
Type:Collage
Release date:26 August 2008
Related releases:eso0824
Size:792 x 196 px

About the Object

Name:Galaxies
Type:• Early Universe : Galaxy : Type : Interacting
• X - Galaxies

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