GJ 1214 b (sometimes Gliese 1214 b, formally named Enaiposha) is an exoplanet that orbits the star GJ 1214, and was discovered in December 2009. Its parent...

Buchhave et al. Optical to near-infrared transit observations of super-Earth GJ1214b: water-world or mini-Neptune?, E.J.W. de Mooij (1), M. Brogi (1), R.J....

but less dense than terrestrial planets) suggests that such planets like GJ1214b and GJ436 are composed of primarily water. Internal pressures of such water-worlds...

Charnay, B.; Meadows, V.; Leconte, J. (2015-10-22). "3D Modeling of Gj1214B's Atmosphere: Vertical Mixing Driven by an Anti-Hadley Circulation". The...