In ancient times, people believed the Earth was flat and held up by three whales. Today we know about the Big Bang, black holes, and the awe-inspiring expanses of the Universe. Observing the night sky makes us feel truly humbled and tiny. Space captivates us, but using modern technologies, we can not only enjoy the stars but also can discover far-away galaxies.

Of course, the Universe is mostly just lots of dark and empty space, but that's not the picture your mind paints when you think of it. You see bright stars, huge galaxies glittering with light, colorful gas clouds, and mysterious alien worlds. We’ve collected some of the coolest facts about the universe for you.

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