Astronomers have discovered an Earth-sized world in orbit around the next nearest star system to our own.
A planet twice the size of the Earth and made up mostly of diamond has been discovered by astronomers.
A $1 billion mission to retrieve the first ever fresh samples of our planet's mantle has been proposed.
Astronomers have identified an extrasolar planet that is a top contender in the hunt for alien life.
Dr Sarah Chan is challenging the belief that every species on the planet should be preserved.
Can Eric Anderson and Chris Lewicki of Planetary Resources actually succeed in mining asteroids ?
A new mission planned for 2016 will be the first to take a look at the deep interior of the Red Planet.
NASA rejoiced this morning as the one-ton Mars Science Laboratory touched down on the Red Planet.
NASA's Curiosity rover is feeling the tug of Mars' gravity as it prepares to land on the Red Planet.
Planets orbiting a sun-like star exhibit the closest layout to that of our own solar system yet seen.
NASA's Mars Reconnaissance Orbiter has snapped a photograph of a strange hole on the Red Planet.
Astronomers have found an alien world that could be the closest known planet smaller than the Earth.
As the hunt for habitable planets intensifies astronomers are turning their attention to alien oceans.
The Earth's magnetic field may flip every few thousand years due to lopsided growth of the planet's core.
Observations of a distant dust-filled solar system have shed light on the process of planet formation.
Scientists believe that the mantle of Mars contains enough water to cover the planet's entire surface.
Some of the strangest legal cases ever recorded have been on the topic of planet ownership.
The four-man 'Finding Bigfoot' team believe they have captured audio of a bigfoot in Australia.
NASA's Kepler Space Telescope has found a planet being destroyed by the heat of its own parent star.
An undiscovered planet four times larger than the Earth could be lurking in the outer solar system.