Astrobiology Daily News 15 April 2013
–Kepler-68: Three Planets, One With a Density Between That of Earth and Ice Giants, astro-ph–Interaction between massive planets on inclined orbits and circumstellar discs, astro-ph–Gap Opening by Extremely Low Mass Planets in a Viscous Disk, astro-ph–The Occurrence Rate of Small Planets around Small Stars, astro-ph–Secular Orbital Evolution of Compact Planet Systems–Constraining the initial entropy of directly-detected exoplanets, astro-ph–Stellar Magnetic Fields as a Heating Source for Extrasolar Giant Planets, astro-ph–Hydrogen-loosing planets in transition discs around young protostars, astro-ph