The spiderweb galaxy is the one if the most massive galaxy ,it lies 10 billion light years away and is made up of dozens of star -forming galaxies in the process of merging together.
The light from the dust originates in thew spiderweb galaxy itself by the ALMA observation. Atacama large millimetre /submillimeter array shows that the water is located far out in galaxy.
The light from the water is concentrated in two regions fat to the east and west of the galaxy core. The image of the spiderweb galaxy as seen by the Hubble space telescope.
Optical - red
Very large array-green.
ALMA-blue
The red colours shows where the stars are located within the system. The dust is also seen in blue colour.
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