@shamkylan28 6 February 2021 more from that month

Two exoplanet families redefine what planetary systems can look like Astronomers expect dense planets to lie close to a star and fluffy planets farther away. But TOI-178’s six worlds, shown in this artist’s illustration, are all jumbled up. source:https://www.sciencenews.org/article/exoplanet-families-planetary-systems-density-resonance #Science