When you write down your address, what do you include? You might put in your country, city and street. By way of comparison, let’s call the Milky Way galaxy earth’s “country,” the solar system consisting the Sun and the planets, “city,” and earth’s orbit within the solar system earth’s “street.” Thanks to advances in astronomy and physics, scientists have gained deep insights into the value of our specific spot in the universe.
First of all the earths country; the “The Milky Way ”. In the universe there are about 200 billion galaxies. Each one of these galaxies contain billions of stars, systems and planets. Our galaxy is the Milky Way as we all know and it is a spiral shaped galaxy.The history of its name can be traced back to the ancient observations and mythology of the Greeks. When observed in a dark sky, the plane of the Milky Way shows light in the night sky, for this reason the Greeks based the original name on the work “Kiklios Galaxios” which means milky circle. Greek mythology described the Milky Way as milk spilled by
Zeus and Hera, while trying to feed their young child Heracles. Moreover the Milky Way has a diameter of 120,000 light years and is believed to be around 14 billion years old.
Second is our “city”, the solar system, is located in the ideal region of the Milky
Way galaxy not too close to the centre and not too far from itt, this zone is refered to "habitable zone" , contains just the right concentration of the chemical elements needed to support life.
The ideal “street” No less prime is earth’s “street,” or orbit within our solar system “city.”
About 93 million miles from the sun, this orbit lies within a limited zone that is habitable because life neither freezes nor fries. Mor...
... middle of paper ...
... are in was created.This may cause fear and make them ask themselves why
hasn't the black hole from our solar system eaten earth??; These Black holes may scare
someone but they are not so destructive as we think.It is impossible for a Black Hole to
destroy earth for two main reasons: First there is no Black Hole close to our Solar system,
the closest one is 1600 light years away.Secondly, in our solar system there is nothing
big enough to create a Black hole that would endanger the earth.
Τhis colossal size, the accuracy and the county could never existjust by coincidence . All
these things must be based on an upperGeniality. This essay just showed a very small part
of our universe. This essay i wrote is the only the top part of a glacier floating along the sea looking down there are stuff that is beyond description and even owning our knowledge.
In Alan Lightman’s, “Our Place in the Universe,” he describes his experiences in the Greek Isles explaining how meek it made him feel to be surrounded by the vast ocean with no land in sight except a small strip of brown in the distance. Great thinkers throughout history, have been exploring the visible variety of shapes, colors, and sizes, though the greatest of these are size, from the smallest atom to gargantuan stars. These massive differences in size change the way we view ourselves in the universe. (470) Garth Illingworth, from the University of California, has studied galaxies more than 13 billion light years away from us.
in the equally codified language of space (marking territories with graffiti in the city, the
Two men named Harlow Shapley and Heber Curtis has a debate in 1920 that is still important today for changing how we think about galaxies. They talked about five important things. The first thing they debated was how big our galaxy, the Milky Way, is. Shapley said that the Milky Way was much bigger than we first thought, 100,000 light-years across, and that, because it was that big, it had to be the only one. Curtis said the the Milky Way was smaller than that, and that other galaxies existed past ours. They were both right and both wrong. Shapley was right about the size of the Milky Way, and Curtis was right about there being many more galaxies in the universe.
Every day we look into the night sky, wondering and dreaming what lies beyond our galaxy. Within our galaxy alone, there are millions upon millions of stars. This may be why it interests us to learn about all that we cannot see. Humans have known the existence of stars since they have had eyes, and see them as white glowing specks in the sky. The mystery lies beyond the white glowing specks we see but, in the things we cannot see in the night sky such as black holes.
The Orion Nebula is one of the closest stellar regions to the Earth. Using parallax measurements, it has been estimated that this nebula is only 1,500 light years away. In addition, the Orion Nebula is a relatively young star cluster, with an approximate age of less than one million years. It has even been speculated that some of the younger stars within the cluster are only 300,000 years old.
This galaxy has been labeled as an elliptical galaxy and a radio galaxy. After its discovery it was deemed the closest giant elliptical and radio galaxy to the Milky Way. Centaurus A is an active galaxy and is forming young blue stars within the dust band near the nucleus. After much observation it was finally concluded by an x-ray image that was captured by the Chandra X-ray Observatory, that the nucleus of Centaurus A is actually a supermassive black hole. This observation took a while to come into fruition because the galaxy is so heavily covered by the thick dust. The supermassive black hole is measured to have the mass that is about 100 million times greater than our sun’s
When I was younger, my mom had a tradition of always taking us out into the middle of nowhere in the middle of the night to watch meteor showers, comets, and anything else you can see in the sky with the naked eye. At a young age, I knew all about the constellations and about other galaxies in the universe. You could definitely say I was a space nerd. It always reminded me how tiny and insignificant my life is compared to the vastness of the universe. It's really a beautiful thing. However, there was one thing that always terrified me. Black holes. Not the kind that you consider your dryer to be when you come out with less socks and you put in. I'm talking planet-swallowing black holes randomly placed in outer space. For the space explorer such as myself, I'm going to tell you about three of the most interesting black holes that I've
When we say black hole it's not really true. A black hole is mostly made of light matter and not dark matter. Black holes are the most deadly thing in the universe that we know. It literally disintegrates it and takes all light away from it and never gives it back. But there is a good thing a black hole does it takes all the space garbage it's basically a space trash can.A black hole has this weird thing when you get to close to it it slows down time and if you get to close it will suck you in and you have no escape from its grasp. Black holes don't actually emit the radiation its the gas and stuff it sucks up and gets heated. This also affects the gravitational of other objects or light passing by. Black holes actually take you and stretch you out like a noodle string. How this happans by the black holes gravity takes you and strches you
Waller, William H. The Milky Way: An Insider's Guide. Princeton, N.J: Princeton UP, 2013. 42+. Print.
Social lives lived out in and around streets offer to social sciences an insight into modern society. By comparing benefits and losses for different individuals on City Road in Cardiff and Holloway Road in London, this text will show how streets provide a space to transform ways people view their identities. It will be shown that people create communal lives, as well as re-imagine national identities. On the other hand, streets also exemplify separation and inequality, such as an undermining of national belonging, or a division on bases of economic success. Thus, what is seen on city streets is transferable to other places and people, showing patterns of human behaviour that are universal on all streets in the world.
Black holes are believed to be the result of the explosion of a very large star, at least 25 times larger than our own. When the star explodes, much of its matter is blown out into space, resulting in a supernova. However, some of it condenses into a black hole. The approximate mass of the resulting black hole is probably slightly larger than the mass of our sun. There are black holes of much larger sizes, however, and they are gener...
The Andromeda Galaxy is the Milky Way Galaxy’s closest neighbor; with it being around 2.5 million lightyears away from Earth. It was once referred to as the Great Andromeda Nebula in older readings. It gets its name from the Andromeda constellation which in turn received its name from the Greek goddess Andromeda.
By 1936, astronomers had realized that the hazy balls they sometimes saw in their telescopes, which looked like stars obscured by gas, were actually galaxies (Hibbison).
Planet X IS BILLION MILES AWAY FOR THE EARTH BUT THAT DOES NOT MEAN THAT IT CANNOT DESTROY THE EARTH.
The Universe is a collection of millions of galaxies and extends beyond human imagination. After the big bang, the universe was found to be composed of radiation and subatomic particles. Information following big bang is arguable on how galaxies formed, that is whether small particles merged to form clusters and eventually galaxies or whether the universe systematized as immense clumps of matter that later fragmented into galaxies (Nasa World book, 2013). A galaxy is a massive area of empty space full of dust, gases (mainly 75% Hydrogen and 25%Helium), atoms, about 100-200 billion stars, interstellar clouds and planets, attracted to the center by gravitational force of attraction. Based on recent research, 170 billion galaxies have been estimated to exist, with only tens of thousands been discovered (Deutsch, 2011).