Sense of scale – How small are we?

Look around the room you are in now. What is the biggest thing there? Is it your bed? Now, look outside the window. What is the biggest thing you can see? Is it a skyscraper? The bed looks tiny when compared to a skyscraper.

Now, what about our planet – Earth or Mars or even the Universe? How does each compare with the other? Enjoy the videos.

Comparision of star sizes:

Travelling at the speed of light to the edge of the Universe:

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