The mystery of the missing super-Earths and mini-Neptunes may finally be solved

The mystery of the missing super-Earths and mini-Neptunes may finally be solved

Astronomers may be ready to explain our universe's lack of exoplanets twice the radius of Earth. An illustration shows an super-Earth exoplanet having its water evaporated while approaching its parent star.(Image credit: Thomas Müller (MPIA)) Scientists have found some planets may migrate toward the hearts of their planetary systems early on in their lives, possibly explaining the lack of planets we see that are around twice the width of Earth. Over the years, scientists have managed to observe many exoplanets …