Answer and Explanation: The Earth's cosmic address is Earth, Solar System,
Astronomers today have seen objects 13 billion light years away in a universe 13.7 billion years old containing hundreds of billions of galaxies. We are peripherally located in one of those galaxies, known as the Milky Way.
We call our galaxy the Milky Way because it appeared to ancient observers to be a milky band of light – like a cosmic roadway – stretching across the dark sky.
If you were to specify your address in the universe, listing your membership from the smallest to largest physical structures, it would be: Earth, Solar System, Local Group, Virgo Supercluster, the Universe.
There is no centre of the universe! According to the standard theories of cosmology, the universe started with a "Big Bang" about 14 thousand million years ago and has been expanding ever since. Yet there is no centre to the expansion; it is the same everywhere.
The universe, in fact, has no center. Ever since the Big Bang 13.7 billion years ago, the universe has been expanding.
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.
We find overwhelming evidence that the universe is the same in all directions. The vast majority of calculations made about our universe start with this assumption: that the universe is broadly the same, whatever your position and in whichever direction you look.
You know how addresses have an order: house < road < locality < city < state < country? Well, this is just our address on Earth! In the entire universe, our address would be: Planet Earth < Solar System < Milky Way Galaxy < Local Group < Virgo Cluster < Laniakea Supercluster < Known Universe.
Thus man's place in the physical universe is to be its master, or at least to be the master of the part that he inhabits, and by controlling the natural forces with his intelligence, to put them to work to suit his purposes, and to build a future world in his own image.
Milky Way is the name of our galaxy. The name is derived from how we see it at night.
Earth orbits our Sun, a star. Earth is the third planet from the Sun at a distance of about 93 million miles (150 million km).
We live on a planet called Earth that is part of our solar system. But where is our solar system? It's a small part of the Milky Way Galaxy.
But as astronomers started puzzling out the nature of the laws of physics, they realized that the Earth wasn't as special as they thought. In fact, the laws of nature that govern the forces on Earth are the same everywhere in the universe.
A new interactive map of the universe presents the entire span of the known cosmos in stunning detail and with pinpoint accuracy. Astronomers created the map, which shows the positions and real colors of 200,000 galaxies, using two decades' worth of data collected by the Sloan Digital Sky Survey.
How Many Planets are in our Galaxy? NASA estimates that there are at least 100 billion planets in our Milky Way alone. Others estimated that the Milky Way galaxy might have anywhere between 100 to 200 billion planets. Currently, over 4,000 exoplanets have been discovered, and every day, more and more follow.
Astronomers have unveiled the first image of the supermassive black hole at the centre of our own Milky Way galaxy. This result provides overwhelming evidence that the object is indeed a black hole and yields valuable clues about the workings of such giants, which are thought to reside at the centre of most galaxies.
The Galactic Center is approximately 8 kiloparsecs (26,000 ly) away from Earth in the direction of the constellations Sagittarius, Ophiuchus, and Scorpius, where the Milky Way appears brightest, visually close to the Butterfly Cluster (M6) or the star Shaula, south to the Pipe Nebula.
Cosmologists aren't sure if the universe is infinitely big or just extremely large. To measure the universe, astronomers instead look at its curvature. The geometric curve on large scales of the universe tells us about its overall shape. If the universe is perfectly geometrically flat, then it can be infinite.
While we can travel through space as far as we like, as fast as we can, for as long as we can imagine without end, most of what's in the Universe is already forever beyond our reach.
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.
Our universe began with an explosion of space itself - the Big Bang. Starting from extremely high density and temperature, space expanded, the universe cooled, and the simplest elements formed. Gravity gradually drew matter together to form the first stars and the first galaxies.
Universe is a name given to all the matter around us. Our universe is also called the cosmos. It is originally a greek word.
If so, according to NASA, the universe is not infinite but has no end, just as the area on the surface of a sphere is not infinite but has no beginning or end to speak of. The universe will eventually stop expanding and start collapsing in on itself, the so-called "Big Crunch."
Astronomers have determined that our universe is 13.7 billion years old. How exactly did they come to this precise conclusion? How Old Is the Universe?