SPT-CLJ2106-5844 is a galaxy cluster located 7.5 billion light years from Earth.
With a weight of about 1.27 × 1015 solar masses, it is the most massive distant object known, as of 2011.
[1][2] This galaxy cluster was found in the South Pole Telescope Sunyaev-Zel'dovich (SPT-SZ) survey.
Like how the central dump is resolved into two different substructures – northwestern and southeastern – which are separated by a distance of ~150 kpc.
To put this in perspective, the Milky Way galaxy could fit 20 times between these two substructures, the actual diameter of 'SPT-CLJ2106' is much bigger than just this gap.