The CN Tower, in Toronto, is the tallest freestanding structure in the world with a height of about 553 metres.

It is predicted that the reason why night insects, such as moths, are attracted to lights is because they mistake them for the light of the moon, which they used to navigate the Earth before mankind made artificial lights.

One million, million, million, million, millionth of a second after the Big Bang the Universe was the size of a …pea.

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