ᴜɴɪᴠᴇʀsɪᴀ on Instagram: "NASA has officially confirmed over 6000 planets outside our solar system. These worlds are called exoplanets, and they orbit stars far beyond our Sun. Some are larger than Jupiter, some are smaller than Earth, and many are completely different from anything we see in our solar system. Scientists have discovered lava worlds, ocean worlds, gas giants, and planets orbiting two stars at once. A few of them even lie in the habitable zone, where temperatures could allow liquid