Pluto's unusual eccentricity and tilt is likely due to its interactions with neighboring Neptune and other giant planets, ...

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Pluto has long been one of the most debated celestial bodies in our solar system. Once classified as the ninth planet, it was ...

The year was 2015. After traveling billions and billions of miles through the Erebus, New Horizons encounters the boatman, and the somber lord of the departed. The spacecraft could have been called ...

The US state of Arizona has taken the unusual step of naming a state planet. Even more unusually, they have chosen Pluto – which is not a planet – as their representative in the solar system. A ...

Forget what you learned in third grade. Pluto is no longer one of the nine planets of the solar system. The International Astronomical Union in Prague ruled today that the much-maligned Pluto no ...

Eight years after being reduced to a "dwarf planet" by the International Astronomical Union in 2006, our far distant cousin is finally getting some real push to be upgraded back to the ninth "planet" ...

On January 17, 2006 the New Horizons mission will launch for Pluto, the last unexplored planet of the solar system — or is it? Some scientists now claim that Pluto does not deserve its planetary ...

An astrologer explains how the power planet's move could destroy the world as we know it - Pluto is the power planet of ...