It consists of two planets orbiting a star similar to our Sun: K2-360 b: An ultra-short period "super-Earth" - a rocky planet larger than Earth but smaller than Neptune - about 1.6 times the size ...

A new study presents a compelling new model for the formation of super-Earths and mini-Neptunes -- planets that are 1 to 4 times the size of Earth and among the most common in our galaxy.

Astronomers have found a super-Earth, HD 20794 d, in the habitable zone around a Sun-like star 20 light-years away. With a mass six times that of Earth and a 647-day orbit, it could have ...

Their model explains this gap by predicting that planets smaller than 1.8 times the Earth's radius are mostly rocky super-Earths, while larger ones are water-rich mini-Neptunes, aligning closely ...