Mind Blowing Facts About Neptune
Neptune, along with its cousin Uranus, is our solar system's least-explored planet, having only been visited by a spacecraft once. Despite this, we've discovered more Neptune-sized planets orbiting other stars than any other type of planet. To understand other solar systems and determine whether ours is unique, we must first learn more about the windy blue world in our own backyard.It's unclear where Neptune came from or how it got its water. The disc of dust and gas that formed our solar system most likely did not contain enough material to form Neptune at its current distance from the Sun, which is 30 times farther than Earth. It was probably born closer to the Sun than the other outer planets before moving outward, though the Sun would have evaporated its water if Neptune had been too close. Scientists can learn about the conditions in the early solar system, around the time life arose on Earth, by determining where Neptune was born and how the planet evolved.
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