You have probably gazed at the sky on a clear night and wonder about whether there are aliens or parallel universes out there. With the advent of space explorations, the notion of living in Mars has already been entertained by some people just in case Earth ceased to be a habitable planet in the future. Or maybe you imagined taking vacation on board on a space ship and your destination is the outer space! Isn’t it cool?
 
Man’s knowledge about the universe has a come a long way. Gone are the days that people feared the occurrence of an eclipse for its means something bad is going to happen. But it’s a different story if you were born hundreds or thousands years ago.
 
Ancient people perhaps did not think about aliens or parallel universe or thought of going to Mars, but they have definitely wondered and gave a lot of thought about how object seem to move across the sky. As they continued to observe the occurrences around them the more they became fascinated and curios, thus, these lead them to their quest for answers and explanations. And the knowledge they accumulated through the years about the skies has been applied to their everyday lives. They rely on it to tell the time, in making calendars, in navigation, in architecture, in agriculture especially on when to sow and when to harvest and so on. And how about you can you tell the time or direction by just observing the sky?

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