A galactic monster as seen through Hubble's eyes

Credit image: ESA/Hubble & NASA, H. Ebeling
Credit image: ESA/Hubble & NASA, H. Ebeling

Article by: Andacs Robert Eugen, on 17 July 2023, at 08:50 pm PDT

Do you know what a cosmic monster looks like? 

NASA and ESA show us one in the making through the eyes of the famous Hubble telescope. In the above image, you can see a factory of galaxies made up of two clusters that are in the process of merging, forming a more massive and bigger cosmic monster. 

According to astronomers, it would act as a gravitational lens. Gravitational Lensing is a phenomenon that occurs when light from an object crosses space and meets a very massive object, like a galaxy cluster. Because of its mass, spacetime is disturbed, making light appear curved. 

In addition to that, gravitational lensing can also magnify distant objects, making them visible to the eyes of astronomers. This process is already visible in these images through the bright arcs that intersect the cluster's galaxies. 

The information captured in this image originates from a project called Monsters in the Making. For this initiative, researchers employed two of Hubble's instruments to observe five remarkable galaxy clusters using different wavelengths. Observations have been made by utilizing Hubble's Wide Field Camera 3 and Advanced Camera for Surveys. 

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