The Boötes Void (/boʊˈoʊtiːz/ boh-OH-teez) (colloquially referred to as the Great Nothing) is an approximately spherical region of space found in the vicinity of the constellation Boötes, containing very few galaxies, hence its name.
The Boötes void, often referred to as the Great Nothing or the Great Void, is an actual area of space with fewer galaxies than you'd expect. At 250 to 330 million light-years across, it is one of the largest voids that we know of.
The Darkest Part of the Universe--Boötes Void. In the northern night sky, you can sometimes find a foreleg-shaped cluster of stars known as the Boötes (Greek word for "herdsman") constellation. In its vicinity, there is an enormous dark space that is 330 million light-years across and shaped like a sphere.
This region, called a void, is 250 million light-years across and is almost entirely bereft of matter. If you centered a region of the same size on the Milky Way, you'd find thousands of galaxies. The Boötes void has only 60. Looking in all directions from its center, the cosmos would appear dark and empty.
Astronomers have discovered what they say is the largest known structure in the universe: an incredibly big hole. The “supervoid”, as it is known, is a spherical blob 1.8 billion light years across that is distinguished by its unusual emptiness.
The scientists have estimated their current location, due to the expansion of the universe as 46.5 billion light years away, hence the diameter of the visible universe is 93 billion light years. This means that the farthest galaxies moved 30 billion light years away in 13.8 billion years.
Looking up at the sky, we see light that's at most 13.8 billion years old and coming from stuff that's now 46 billion light years away. Anything farther is beyond the horizon, but each second, we see new, even older light coming from slightly farther away, three light seconds farther, to be precise.
asserted that space, or the Void, had an equal right with reality, or Being, to be considered existent. He conceived of the Void as a vacuum, an infinite space in which moved an infinite number of atoms that made up Being (i.e., the physical world).
Our Galaxy Is Also Surrounded By A Void. Not only is the inside of the Milky Way home to a big void, but chances are we're also surrounded by one. This is known as a Local Void, and likely surrounds the outside of the Milky Way galaxy. However, our galaxy tends to move towards areas with more density.
Astronomers have previously noticed that the Milky Way sits in a large, flat array of galaxies called the Local Sheet, which bounds the Local Void. The Local Void extends approximately 60 megaparsecs (200 Mly), beginning at the edge of the Local Group.
Initially, the region was referred to as The Great Nothing, but later came to be known as the Boötes Void, as it appears to lie in the constellation of Boötes, the herdsman who drives the Plough around the North Pole. Since then, surveys have managed to create more detailed maps of our Universe.
Cosmic voids contain a mix of galaxies and matter that is slightly different than other regions in the universe.
Almost every galaxy can be classified as a spiral, elliptical, or irregular galaxy. Only 1-in-10,000 galaxies fall into the rarest category of all: ring galaxies.
Radiation
Radiation is not only stealthy, but considered one of the most menacing of the five hazards. Above Earth's natural protection, radiation exposure increases cancer risk, damages the central nervous system, can alter cognitive function, reduce motor function and prompt behavioral changes.
The term dark matter was coined in 1933 by Fritz Zwicky of the California Institute of Technology to describe the unseen matter that must dominate one feature of the universe—the Coma Galaxy Cluster.
The closest void to us on Earth is the Local Void (clever, right?). This guy is 150 million light years across and sits at the edge of our local group of galaxies. It is believed that the center of the Local Void is at least 75 million light years from Earth.
The trite answer is that both space and time were created at the big bang about 14 billion years ago, so there is nothing beyond the universe. However, much of the universe exists beyond the observable universe, which is maybe about 90 billion light years across.
The Solar System Exists Inside a Giant, Mysterious Void, And We Finally Know Why. The Solar System floats in the middle of a peculiarly empty region of space.
The infinite void is the single unbounded region surrounding the geometry model. This is the typical region selected when modeling scattering or radiation problems with the Pressure Acoustics, Boundary Elements interface.
Void or absolute void is an elementary entity in the existence and it is the source of everything else. It has four dimensions X axis, Y axis, Z axis and the force. Obviously, void in an open system, mean the void's existence in a free form.
Voids have typical sizes of hundreds of millions of light years and occupy about 90% of known space. Although their name suggests that voids are completely empty of galaxies, this is not actually true.
Astronomers have discovered what may be the oldest and most distant galaxy ever observed. The galaxy, called HD1, dates from a bit more than 300 million years after the Big Bang that marked the origin of the universe some 13.8 billion years ago, researchers said on Thursday.
For most space objects, we use light-years to describe their distance. A light-year is the distance light travels in one Earth year. One light-year is about 6 trillion miles (9 trillion km). That is a 6 with 12 zeros behind it!