A physics teacher told me today, that all the constellations we see, is pure fiction. Because it takes millions of years for the light to travel, we receive information about what the stars looked like for 20000000 years ago, when we look at constellations. While the light was traveling, the universe probably changed a whole lot. So what we presently see, can't be trusted as real.

That makes me feel quite sad and quite small. goodnight.