Kurzgesagt is always good value. Love the channel. It's also weird to think that it's been less than a hundred years since Edwin Hubble confirmed that the universe was expanding and that we even discovered that there were other galaxies at all. Before that, the indistinct smudges of distant galaxies that we could detect were thought to be nebulae and local. I was already nine years old when the first confirmed exoplanet was discovered. The march of progress is insane, especially when you consider it against the backdrop of cosmic time-scales