Kepler 442b has a mass around double that of the Earth and a radius 30% greater than the Earth. The equilibrium temperature, that is the temperature of the planet if there wasn’t an atmosphere, is 233 K (-40°C; -40°F). Kepler 442b orbits 38,000,000 miles (61,200,000 kilo...
"As NASA's first exoplanets mission, Kepler has made a dramatic entrance on the planet-hunting scene," said Jon Morse, director of the Science Mission Directorate's Astrophysics Division at NASA Headquarters in Washington. "Detecting this planet's atmosphere in just the first 10 days of data i...
Instead, the presence of an outgassing magma ocean on the dayside and the low high-energy irradiation of the old host star may have enabled Kepler-10b to build up and retain a recently formed collisional secondary atmosphere. The magma-world scenario may instead apply to K2-141b and K2-131b...
a planet with a greater mass and radius than Earth but less than the Ice Giants. Kepler 442b has a mass roughly double that of the Earth and a radius 30 percent larger. The equilibrium temperature, or the temperature of the planet if no atmosphere existed, is 233 K (-40°C; -40°F...