The discovery of a Neptune-mass exoplanet orbiting the very low-mass M dwarf star LHS 3154 challenges theoretical models of planet formation, according to a new study. The planet, which has a mass at ...
A Neptune-mass exoplanet, LHS 3154 b, orbiting a low-mass M dwarf star (11% solar mass) has been discovered, challenging previous assumptions about planet formation around such stars. The planet's ...