but most are too far from Earth for researchers to easily spot planets around them. However, the new results hint that small, rocky planets could be abundant around these miniature stars.

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 ...

The ESA hopes we'll someday treat Earth's orbit as an international nature preserve: 'What you bring in with you, you must ...

A quartet of small, rocky exoplanets likely circle Barnard's Star, around 6 light-years from Earth, putting them in contention as targets of missions for future human generations.

Even more exciting, the model suggests that some Earth-like planets could form in the habitable zone—the region around a star ...

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.