Origin of the universe
Teacher I, Luis Escutin National High School, Dao, Capiz
EARTH and life science is one of the wealthy fields of science that provide a general background for the understanding of Earth Science and Biology. It presents the history of the Earth through geologic time. It discusses the earth’s structure, composition and processes. Issues, concerns and problems pertaining to natural hazards are also included.
It also deals with the basic principles and processes in the study of biology. It covers life processes and interactions at the cellular, organism, population, and ecosystem levels. This is included and is given much highlight and emphasis in Senior High School of the K-12 curriculum.
Of its wide scope and range, today in this article, the explanation on how the universe originated will be revisited. Perhaps, since it had been over two million years ago, millennials today do not care much as to how things happened because it is already there when they were born, too later than their parents were born. The universe will sound a normal location or body of land with water and vice versa where we coexist.
Because it is over 2 million years ago, we may already forgot how our universe came to be, thus, a refresher from time to time would be helpful. I also believe that if always, we look back to where we come from, we can always thrive on where we will be. In going back to our roots, we will be able to appreciate how simple life was, and how uncomplicated the situations were; and that what makes life complicated right now because we simply forgot how it was before.
The most popular theory of our universe’s origin centers on a cosmic cataclysm unmatched in all of
history – the Big Bang. This theory was born of the observation that other galaxies are moving away from our own at great speed, in all directions, as if they had all been propelled by an ancient explosive force.
What is the Big Bang Theory? Before the Big Bang, scientists believe the entire vastness of the observable universe, including all of its matter and radiation, was compressed into a hot, dense mass just a few millimeters across. This nearly incomprehensible state is theorized to have existed for just a fraction of the first second of time. Big bang proponents suggest that some 10 billion to 20 billion years ago, a massive blast allowed all the universe’s known matter and energy – even space and time themselves – to spring from some ancient and unknown type of energy.
The theory maintains that, in the instant – a trillion-trillionth of a second – after the Big Bang, the universe expanded with incomprehensible speed from its pebble-size origin to astronomical scope. Expansion has apparently continued, but much more slowly, over the ensuing billions of years. Scientists cannot be sure exactly how the universe evolved after the big bang. Many believe that as time passed and matter cooled, more diverse kinds of atoms began to form, and they eventually condensed into the stars and galaxies of our present universe.
The Big Bang Theory leaves several major questions unanswered. One is the original cause of the Big Bang itself. Several answers have been proposed to address this fundamental question, but none has been proven – and even adequately testing them has proven to be a formidable challenge. (