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  1. Venus

    Publishing date:

    August 6, 2003

    Of similar size and mass to Earth, Venus is sometimes considered its sister. The similarity stops there, however, and little is known about the evolutionary processes that created this peculiar planet.

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  2. Saturn

    Publishing date:

    August 6, 2003

    Long thought to be the only planet with a ring system, Saturn is a gas giant much like Jupiter:

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  3. Neptune

    Publishing date:

    August 6, 2003

    Neptune was the first planet to be discovered not through observation, but by predicting its existence using calculations based on the universal theory of gravitation.

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  4. Pluto

    Publishing date:

    August 6, 2003

    The smallest and usually the most distant planet in our solar system, Pluto is unique as it is neither a terrestrial planet nor a gas giant. Another surprise is its orbit which, rather than being circular and very near the ecliptic plane like the other planets, is highly elliptical and tilted.

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  5. Mercury

    Publishing date:

    August 6, 2003

    The closest planet to the Sun, Mercury is also the smallest of the telluric or Earth-like planets.

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  6. Pluto is no longer a planet

    Publishing date:

    August 25, 2006

    At its General Assembly in Prague, the International Astronomical Union decided that Pluto should no longer be considered a planet in the Solar System. It shall now be classed in a new category of celestial objects called “dwarf planets”, quite separate from the 8 “real” planets.

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  7. CoRoT uncovers a new Sun

    Publishing date:

    June 14, 2010

    Since 2006, CNES’s CoRoT satellite has been probing the stars in our Galaxy. With the data it has amassed, an international team has discovered a star that vibrates just like our own Sun.

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  8. CoRoT discovers 7 new planets

    Publishing date:

    June 14, 2010

    CNES’s exoplanet-hunting spacecraft has made a series of new discoveries, reaping a rich harvest of data to help scientists better understand these far-off “solar systems”.

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