Astronomen entdecken ein 120 Lichtjahre entferntes Sonnensystem mit zwei „Erden“ und einer Anordnung, die so seltsam ist, dass sie in kein bekanntes Formationsmodell passt

From the article:

„*What happens when a planetary system refuses to follow the usual script? Astronomers say they have found exactly that around LHS 1903, a small red dwarf about 116 light-years from Earth, where four planets circle in an order that current formation models did not expect.*

*Instead of a neat progression from rocky worlds near the star to gas-rich worlds farther out, this system seems to go rocky, gas, gas, and rocky again, and the team says that odd layout could be one of the strongest signs yet that some planets form one by one in a gas-depleted disk.*

*That final planet is the one pulling most of the attention. Called LHS 1903 e, it completes an orbit in 29.3 days, has a mass of 5.79 Earths, a radius 1.732 times Earth’s, and appears to be a rocky super-Earth with no thick gaseous envelope, even though it sits farther from the star than two puffier neighbors.*“