Astronomers have discovered that "super-Earth" planets may exist on wider orbits than previously thought — and this implies ...

Study uses computer model to predict existence of habitable zones in white dwarf star systems A research team led by the ...

The Sun’s gravity holds all of these objects together, and the gravitational forces between objects can cause less massive objects to orbit more massive objects. Most terrestrial planets have ...

With the exception of Pluto, planets in our solar system are classified as either terrestrial (Earth-like) or Jovian (Jupiter-like) planets. Terrestrial planets include Mercury, Venus, Earth ...