Detecting potentially habitable worlds among the thousands of exoplanets discovered so far is one of the key goals of modern astronomy. However, many challenges lie ahead, one of which is the discrimination between super-Earths and mini-Neptunes.

Super-Earths are rocky planets with a mass between Earth's and Neptune's, while mini-Neptunes are gas giants with a mass between Neptune's and Uranus'. Both types of planets can be found within the habitable zones of their stars, where liquid water could potentially exist on their surfaces.

One way to distinguish between super-Earths and mini-Neptunes is by studying their atmospheres. Super-Earths are expected to have thin atmospheres dominated by water vapor and carbon dioxide, while mini-Neptunes are expected to have thicker atmospheres containing hydrogen and helium.

Another way to distinguish between these two types of planets is by studying their interiors. Super-Earths are expected to be composed mostly of rock and iron, while mini-Neptunes are expected to have large cores of rock and ice surrounded by a thick layer of gas.

By studying the atmospheres and interiors of exoplanets, astronomers hope to be able to better understand their nature and determine which ones might be habitable for life.