Discover the order of planets in the solar system. From Mercury to Neptune, explore our solar system and learn more about our cosmic home. The solar system is our cosmic neighborhood, made up of ...

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 ...

Plato, the European Space Agency's terrestrial planet hunter spacecraft, is seen after having 24 of its 26 cameras installed.

"It's very likely that [sun-like] stars are accompanied by terrestrial planets," he says. "My intuitive sense is that our solar system is not uncommon at all." Berkeley's Geoff Marcy agrees ...

Astronomers have discovered that "super-Earth" planets may exist on wider orbits than previously thought — and this implies these rocky, or "terrestrial," worlds are far more common than was ...

It's also known as a telluric or rocky planet. A terrestrial planet simply refers to a planet that's mostly composed of silicate rocks or metals. Other terrestrial planets in our Solar System ...

The planets orbit the sun in elliptical paths, with the inner four being rocky terrestrial worlds and the outer four being gas and ice giants many times larger than Earth. Our fascination with ...