Deep Space Background
THE

BLACK

VOID

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THE

BLACK

VOID

Bootes Void

Other // Bootes

Object Analysis

The Bootes Void is an enormous, approximately spherical region of space containing very few galaxies. It is located in the vicinity of the constellation Bootes, which is where it gets its name. With a diameter of nearly 330 million light-years, it is one of the largest known voids in the universe, often referred to as a "Supervoid."

If the Milky Way had been in the center of the Bootes Void, we wouldn't have known there were other galaxies until the 1960s. To date, only about 60 galaxies have been discovered in this massive space—a region that, if at average density, should contain roughly 2,000 to 10,000 galaxies.

The existence of such a massive void is likely the result of smaller voids merging together over billions of years, similar to how soap bubbles join. It provides a stark reminder of the "lumpy" nature of the universe, where matter is concentrated in filaments and the vast majority of volume is essentially empty space.