Person: Alan Stern

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Nasa goes the distance to explore Pluto

Nasa’s New Horizons spacecraft is closing fast on an unexpectedly spotted Pluto, the most distant planetary body ever explored.

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This is the best photo of Pluto ever taken

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Meteorite shower brings Mars rock to Earth

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Scientists say rocks fell from Mars

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Planets bigger than earth may exist ‘at edge of space’

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Fifth planet is 'exciting next step'

Nasa hopes winds will calm to allow Pluto mission launch

Nasa scientists hope the third time is the charm for its $700m (€578.7m) unmanned mission to Pluto.

Thu, 19 Jan, 2006

Pluto thought to have two more moons

Pluto has three moons, not one, new images from the Hubble Space Telescope suggest.

Mon, 31 Oct, 2005

Astronomers discover '10th planet' in solar system

Astronomers say they have discovered a new planet larger than Pluto in orbit around the sun, renewing debate over what exactly is a planet and whether Pluto should keep its status.

Sat, 30 Jul, 2005