World - is in the beginning our universe was
a mass of white hot vapours and molten materials whirling about in space. Our
world was formed from this. Astronomers believe it took millions of years for
the cloud to cool, contract and begin to turn into molten rock.
Modern astronomers think that
many millions of years ago there was a huge explosion in space.
They do not
know exactly what happened. But it is possible that our sun exploded or that a
much bigger companion star of the sun became a supernova that is, it broke up
violently. The debris and blazing gases from this explosion were, it is
thought, flung far into space.
For more millions of years our universe
boiled and bubbled. But slowly, very slowly, the fiery redness began to cool
and condense into the nine planets and many more smaller bodies. All these
planets now revolve around the sun.
After
further vast periods of time the lava of the earth began to solidify,
developing over many millions of years, into the world as we know it today.
No comments:
Post a Comment