Webb Space Telescope sees massive protocluster of galaxies in the early universe

A protocluster of seven galaxies has been confirmed a distance of redshift 7.9 for the first time. 

According to the European Space Agency – an international partner on the James Webb Space Telescope with NASA and the Canadian Space Agency – the term "redshift" refers to how the wavelength of light is stretched and seen as "shifted" toward the red part of the electromagnetic spectrum. 

The higher the redshift, the farther away – and back in time – the source.

In this case, the protocluster of galaxies were a mere 650 million years after the big bang, according to data collected using the telescope. Using this data, astronomers calculated the cluster's future development, finding that it will likely grow in size and mass to resemble the Coma Cluster. 

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