Daniel and Kelly’s Extraordinary Universe cover image

Could the Universe be shaped like a donut?

Daniel and Kelly’s Extraordinary Universe

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How Far Can We See in the Universe?

How far we can see in the universe? You might imagine it would be the age of the universe times the speed of light that poutons would be racing through to us. But because the universe is expanding, some of the stuff that sent us photons a long time ago is now much, much further away. I'm not satisfied to only see 62 million light years away. I want to know what's beyond that. If i keep going past 65 billion light ears, what am i going to fighd among it? Am i going to hit a wall? Is it the universe going to go on forever? Or is it something even crazier?

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