The stars have many ice giants, like Neptune and Uranus, that are four times the diameter of Earth. It’s possible that Neptune-sized planets arise in larger numbers when a planet-making disk lasts longer, Pfalzner says.
The stars have many ice giants, like Neptune and Uranus, that are four times the diameter of Earth. It’s possible that Neptune-sized planets arise in larger numbers when a planet-making disk lasts longer, Pfalzner says.