Dying Sun

THE DYING SUN


A few stars are knows which are hardly bigger than the earth, but most of them are so large that hundreds of thousands of earths could be packed inside each and leaves room to spare; here and there we find an immense star large enough to contain millions of earths. And the total number of stars in the universe is probably something like the total number of grains of sand on all the sea-shores of the world. Such is the littleness of ours home in space when measured up against the total substances of the universe.
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These millions of stars are wandering about in the space. A few forms groups which journey in company, but most of them travel alone. And they travel through universe so immense that it is very rare event indeed for one star to come anywhere near to another. For the most part each star makes its voyage in complete loneliness like a ship on an empty ocean. In a scale model in which the stars are ships, the average ship will be well over a millions from its nearest neighbor. From this it is easy to understand why a star seldom finds another anywhere near it.  

We believe, however, that come two thousand million years ago this rare event took place and that another star, wandering blindly through space, happened to come near the sun, just as the man and moon raise tides on the earth, so this second star must have raised tides on the surface of the sun. But they would be very different from the little tides which the small mass of the moon raises in our oceans; an immense tidal wave must have travelled over the surface on the surface of the sun, at last forming a mountain so high that we can hardly imagine it. As the cause of the disturbance came nearer and nearer, the mountain would rise higher and higher. And before the second star began to pieces and threw off small parts of itself into space. These small pieces have been going round the sun ever since. They are the planets, great and small, of which our earth is one.

The sun and the other stars we see in the sky are all extremely hot-far too hot for life to exist on them. So also no doubt was the pieces of the sun when they were first thrown off. Gradually they became cooler, until now they have very little heat of their own left, their warmth coming almost entirely from the radiation which the sun pours down on them. In course of time one of these cooling pieces gave birth to life. We do not know how when or why this happened. It started in simple organisms, whose living power consisted chiefly in their being able to reproduce themselves before dying. But from these humble beginnings came a stream of life which, growing ever more and more complex. Has in the end produced beings whose lives are largely centered in their feelings and ambitions, their sense of beauty and the religions in which lie their highest hopes and noblest desires.
Although we cannot speak with any certainty it seems most likely that the human race came into existence on some such way as this. Standing on our little grain of sand, we try to discover the nature and purpose of the universe which surrounds our home in space and time. Our first feeling is something like fear. We find the universe frightening because of its immense distances which we do not understand, frightening because of the stretches of time so great that we cannot imagine them, making the whole of human history so very small in comparison, frightening because of our extreme loneliness and because of the littleness of our home in space – a millionth part of a grain of sand out of all the sea-sand in the world.

Milky Way

The stars themselves are far too hot for this. We may think of them as a collection of fires scattered through space, providing warmth in surroundings where the temperature is at most some four degrees above absolute zero that is about 484 degrees of frost on the Fahrenheit scale. In the immense stretches of space beyond the Milky Way, it is colder still. Away from the fires there is a temperature of thousands of degrees, at which all solids melt all liquids boil.  

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