Density Difference Of Sub-Neptunes Finally Deciphered

An international team led by UNIGE, UNIBE and PlanetS has shown the existence of two distinct populations of sub-Neptunes, resolving a debate in the scientific community.

This artist's impression shows the view from the planet in the TOI-178 system found orbiting furthest from the star. New research by Adrien Leleu and his colleagues with several telescopes, including ESO's Very Large Telescope, has revealed that the resonant system boasts six exoplanets and that all but the one closest to the star are locked in a rare rhythm as they move in their orbits. © ESO/L. Calçada/spaceengine.org

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