WILL THE UNIVERSE EVER COMES TO AN END?

in #astronomy6 years ago (edited)

Less than 500 years ago, people thought that the Earth was the central of the universe. It is only within the last few hundred years that we have learnt that Earth is just one of eight planets (for now pluto is dwarf) revolving around the sun.

At present the universe is still expanding as it has done ever since the big bang. Whether it will continue to do so in one of the big unanswered questions of astronomy(the science of stars)


There are two main theories about what will happen.The Big chill idea suggests that the expansion will continue for ever with galaxies, stars and planets growing ever farther apart, darker and colder; eventually even the stars will go out.

Alternatively, some astronomers believe that the force of gravity in the universe is such that the galaxies will eventually begin to fall back on each other and that the big universe will collapse, in super hot moment known as the Big crunch

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