By A Mystery Man Writer
Sub-Earth, PlanetStar Wiki
Avis, PlanetStar Wiki
List of transiting extrasolar planets
Eponymously Yours, W. Skeffington Higgins — LiveJournal
Kepler-42c - Wikipedia, la enciclopedia libre
File:1985-86pt2pg1088.pdf - Wikimedia Commons
General Relativity - Bundling of my Derivations and Deliberations
Kepler vs Corot, Seite 4
Novato Meteorite: Most Up-to-Date Encyclopedia, News & Reviews