What is a galaxy? – ScienceNordic

Gazing at the dark night sky, you see stars scattered in all directions. There might be a few more here than there are there, but in general, the stars are distributed more or less evenly on the night sky.
However, if you find yourself in a particularly dark spot, you’ll see a faint band of light across the sky. And if you were to point a telescope in the direction of this band, you’d see many many more stars.
Italian scientist Galileo Galilei was the first one to do this, thereby confirming the…

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