Why The Speed of Light Matters

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Why doesn't the universe allow anything with mass move at the speed of light? - Quora

Cosmic uncertainty: Is the speed of light really constant?

Does the universe wrap around, so that Earth could see itself far away were it not for the speed of light? - Quora

If you could position a telescope far enough out in space looking back at the earth and zoom in, could you literally see people standing upright, 'side on' and upside down as

Can anything travel faster than the speed of light?

Depois que avançados alienígenas nos descobrirem, como eles poderiam viajar os anos-luz para chegar até nós? - Quora

Will it ever be possible to observe Earth's distant past from a remote part of the universe? - Quora

What is the Speed of Light? - Universe Today

Why is the speed of light a random finite number?

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