The Evolution Of The Universe

That the universe extended beyond the Milky Way was already widely surmised, and this discovery didn't change much. The revolution came when Hubble compared these newfound distances with the velocities of galaxies, which can be determined by measuring their color spectra. To his surprise, he found the two to be nearly linearly correlated, leading to the conclusion that every galaxy is receding from every other galaxy, and the universe as a whole is expanding.

The Economist’s article “The most beautiful theory” discusses Albert Einstein’s theory of general relativity. It explains the origins of general relativity through Einstein’s initial thought experiments that eventually led to the realization that the university functions in four dimensions (“three spatial dimensions, one temporal one”) and that mass curved space-time, creating gravity. Over time, Einstein’s theory was verified by observations, such as those made by Arthur Eddington when he noticed the skew of light around the sun during an eclipse, which could only have been due to distorted space-time. His theory has also been expanded over the years as physicists try to combine general relativity with

In 1916 Einstein proposed his new General Theory of Relativity that built upon Newton's Universal Theory of Gravitation which showed "that gravity is responsible for the motions of both planets and falling objects near the Earth" (Fix, p 86). Einstein' theory "describes gravity as a curvature in four-dimensional spacetime" (Singh, p. 502). The original intent of the theory was to explain the inaccuracies of Mercury's orbit when using Newton's law and the Sun's bending of light.

Einstein created the theory of relativity, which concluded that the universe and time are not definite but instead relative to the observer. Space and time do not have an reality separate of people's observation. Time and space vanish with material things. Matter is not anything other than a configuration of energy. This was a different opinion than Newton’s universe, which was based on reason and certainty. This change is perceptive demonstrated the change of mindset. Einstein’s universe is uncertain.

The most common scientific explanation of how our universe came to be, is the Big Bang Theory. Around 13. 8 billion years ago there was no sign of anything apart from darkness. Until astronomer Edwin Hubble made a remarkable discovery about how the universe was created. Edwin Hubble hypothesised the matter and energy in the universe was initially condensed in a very small and infinitely hot mass. A huge explosion, known as the Big Bang, then sent matter and energy expanding in all directions (Howell, n.d.).

In inspiring people to have the passion in understanding the universal laws that govern us all, Professor Stephen Hawking reminds us on his speech for his 70th birthday to “remember to look up at the stars and not down at your feet” (enoch, 2012). Many scientists have been “looking up” and have discovered answers to the many questions that we have of the universe for ages. They have constructed theories, launched satellites, observed stellar phenomena, and even sent living beings in space to gain more understanding of the existence of everything. After centuries of research and observation, there are still some aspects of Astronomy that are still to be explored. One of them is the evolution of the Solar System, which is composed of the Sun and everything that travels around it. This includes eight planets and their natural satellites such as the Earth’s moon; dwarf planets such as Pluto and Ceres; asteroids; comets and meteoroids (Solar System Exploration, 2014). The Solar System is located in the Milky Way Galaxy, which is a part of a galactic group under the Virgo Supercluster. Figure 1 shows the location of our Solar System in the Universe. Many theories have been proposed on how the Solar System existed, but none has been completely successful. This spans from the time of the Ancient Greeks to the present 21st Century. As of now, the widely accepted theory is the Nebular Theory, which describes how the Solar System started as a large cloud of gas that contracted under

The idea that the universe had an origin was a result of the discovery of the expansionary universe.[vi] The theoretical groundwork for the expansionary universe theory was conceived, ironically, by Albert Einstein (a firm believer in the infinite and unchanging universe) in his work concerning relativity.[vii] The expansionary universe theory was later confirmed by Edwin Hubble in the 1920’s when he showed through careful observation of the

The universe of the past was understood to be a simple one-galaxy model that was both unchanging and immeasurable. Theories have constantly changed and been reconstructed to better portray the progression of human understanding over time. “The cosmos began

Throughout our whole lives we have always been taught ‘ to think before we act’, ‘think before we make a decision’, and ‘think about the consequences’. All this, to prevent us from selecting the wrong decision. However, what if we lived in a world where you could have seen where the other decisions would have lead to? To see if you had truly made the ‘right’ decision, or the wrong one. Of course, this is nowhere near possible with our current technology. Nevertheless, there is still hope lying within the Multiverse, yet to be discovered. This very thing, is a Parallel Universe. This alternate reality ‘branches off’ from our own cosmos, universe seemingly identical yet faced with many differences, large or small. However, while few scientists

Throughout time people have held different ideas of what the universe looks like, from the Aristotelian universe centered around the Earth to the Copernican universe with our Sun at the center. After Sir Isaac Newton invented physics,

The Big Bang Theory is the name given to mark the event of the birth of the universe and is the scientific theory about what happen in the earliest moments of the universe, and how the universe was an extremely hot and dense of subatomic particles and radiation. The big bang let insights about how old the universe is and the universe is 14 billion years old and it has changed throughout its time.

Initially anticipated by Albert Einstein with his theory of relativity in 1916 to the year 1980, when Alan Guth developed the concept of cosmic inflation, a telescope was thought to have detected primordial gravitational waves after being examined for three years. Led by John Kovac, a group of Harvard astrophysicists retrieved the data from the Background Imaging of Cosmic Extragalactic Polarization 2, a telescope located at the South Pole, where the telescope was used to measure the cosmic microwave background. For three years, the team had been examining the signal to determine if the gravitational waves created were occurring at the same place a trillion times by observing part of the sky from the south pole.

The beginning of time and the universe began with the Big Bang. This was an explosion that started the expansion of the universe. In the most basic sense, the standard model is simply the idea that every bit of the matter and energy in the universe was once compressed to an unimaginable density. In the big bang, the material exploded outward into the formation of matter that we see today. Shortly after this event everything in the universe was very dense and very hot. It was only until 500,000

General Relativity is a two part theory created by the German physicist, Albert Einstein. The two sections of relativity is special relativity and general relativity. Special relativity focuses more on lines, constant-velocity motion on the mass of objects, the passage throughout time, and that passing the speed of light is impossible. General relativity deals with accelerated motion, gravitational fields on mass, size, and time. General relativity also states that matter and space effect each other and that the universe ends and there may be more universes out there. Relativity also includes space-time. Many people think that space and time are completely different variables, but physicists often combine them into “space-time”. Space-time is a four-dimensional coordinate system used in relativity and other areas of physics. The dimensions are, length, width, height, and the 4th is the time dimension.

Astronomers believed the Universe was created about 14 billion years ago. During that time, the entire Universe was inside a bubble that was thousands of times smaller than a pinhead, and it was insanely hot and dense. Out of nowhere this little bubble started expanding. This expansion created what we know as the Universe. In such little time the Universe went from the size of an atom to the ginormous galaxy we have that is continuously growing.