Giant Arc of Galaxies is Way Too Big to Exist, Scientists Say

A team of scientists has found a gigantic structure in space, called the Giant Arc, that’s way too big to exist based on what we thought we knew about the universe.

The Giant Arc is a massive collection of galaxies, galactic clusters, and other space stuff that measures 3.3 billion light-years across, according to Live Science, blanketing about seven percent of the known universe. The problem is that at that scale, there really shouldn’t be any sort of definable clusters throughout the universe, pitting this new discovery against established models of the cosmos — and setting up yet another dramatic situation in which scientists’ best theories about the structure of the cosmos don’t line up with real-world observations. ... Read More »