The idea of solar system or universe has no origin is unrealistic. Discuss
Answers
The best-supported theory of our universe's origin centers on an event known as 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.
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This artist's concept represents crucial periods in the development of the Universe according to one theory. It begins with a tiny fraction of a second after the Big Bang and goes through the way it looks today-15 billion years later. (NASA Goddard Space Flight Center)
How and when did the universe begin? No other scientific question is more fundamental or provokes such spirited debate among researchers. After all, no one was around when the universe began, so who can say what really happened? The best that scientists can do is work out the most foolproof theory, backed up by observations of the universe. The trouble is, so far, no one has come up with an absolutely indisputable explanation of how the cosmos came to be.