Origins of the universe


Since I was a child my eyes have scanned the stars….seeking to unlock it’s celestial secrets.  I have always been fascinated by the world around me, what made the planets, where the universe came from, how did we get here?  Many questions for even we, human beings are as timeless as the heavens above:

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.

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 can’t 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.

Origins of the Theory

A Belgian priest named Georges Lemaître first suggested the big bang theory in the 1920s when he theorized that the universe began from a single primordial atom. The idea subsequently received major boosts by Edwin Hubble’s observations that galaxies are speeding away from us in all directions, and from the discovery of cosmic microwave radiation by Arno Penzias and Robert Wilson.

The glow of cosmic microwave background radiation, which is found throughout the universe, is thought to be a tangible remnant of leftover light from the big bang. The radiation is akin to that used to transmit TV signals via antennas. But it is the oldest radiation known and may hold many secrets about the universe’s earliest moments.

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.

For our origins are just as mysterious as how it all began……

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One thought on “Origins of the universe

  1. there’s also ‘teh big bang theory’ (very different to ‘the big bang theory’ – for a start it takes itself way less seriously)…

    this takes the view that the universe is a single topological entity that at its ‘point of origin’ (from an observer’s point of view) can only be classified as a single object, but which divides (or becomes observable as discreet parts) over time… remaining a whole thing, but being increasingly observable as a collection of parts too.

    …how a single topological entity divides like this can be analysed using number theory…maths…

    …and leads to quantum mechanics…

    😛

    (funnily enough you ask ‘what is the cause of the big bang’ – but that’s just the result of our observer position… at any point in the universe it looks as though there was a big bang, but really really really… nothing at a point is impossible, so nothing at the point before the bang is impossible, so there’s always been .. well… something… it just LOOKS as though it bigbanged…)

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