Cancri 55 e: Climate Patterns on a Lava World . ... Credit Copyright: NASA , JPL-Caltech , Spitzer Space Telescope Explanation: Why might you want to visit super-earth Cancri 55 e? Its extremely hot climate would be a deterrent, as mornings on this world might bring fresh lava flows. Discovered in 2004, the planet Cancri 55 e has twice the diameter of our Earth and about 10 times Earth's mass. ... The illustrated red bands on the Cancri 55 e indicate bands of lava that might flow on the planet. ...