The newly-discovered exoplanets, called EPIC 211964830b and c, are both mini-Neptunes — gaseous planets smaller than our Solar System’s Uranus and Neptune.The inner planet has a radius of around 2.3 times that of Earth, and the outer planet has a radius of 2.8 Earth radii. They orbit their parent star extremely closely, with periods of 5.8 and 19.7 days.Designated EPIC 211964830, the star is an M2.5 dwarf, with a radius and a mass of about 47% that of the Sun.It lies on the periphery of the central core of the Beehive Cluster (also known as Messier 44, NGC 2632 and...