Big Think
2026-07-28 06:00 en
It’s hard to fathom just how far we’ve come in our understanding of the Universe over the past 200 years. Back in the early 1800s, we didn’t even know how far away the stars were, what they were made of, or how they worked. We didn’t know what the Universe was, how big it was, or even what the laws were that governed it. We were up to seven planets in the Solar System, with Uranus being discovered in 1781, and had uncovered several asteroids: objects in between the orbits of Mars and Jupiter. We didn’t know the nature of the Milky Way, or whether there was anything at all beyond it. And we…